Peter Odemwingie scored twice as West Bromwich Albion put further pressure on Premier League strugglers Southampton with victory at The Hawthorns.
Odemwingie opened the scoring with a shot from outside the box towards the end of the first half.
Rickie Lambert struck the bar just after the break, before Odemwingie rounded off a fine West Brom counter by heading beyond Paulo Gazzaniga.
The win means West Brom climb to fifth, while Southampton remain bottom.
West Brom have won five of their six home games in the Premier League this season
West Brom have enjoyed their best start to a season for decades, but two successive defeats might have given Southampton hope they had caught Steve Clarke's side at the right time.
The Saints, wary of the need to start picking up points quickly, were immediately probing for an opening and it was they who had the first attempt on target, but Lambert's low drive from the right of the box was saved well by Ben Foster.
For all of Southampton's good build-up play they were almost punished for a lack of concentration in defence after 20 minutes. Odemwingie hit a low effort that was going wide until Zoltan Gera stuck out a boot, but the Hungarian succeeded only in diverting the ball over the bar from six yards.
Southampton did not lessen their attacking intent despite that scare and had a chance just before the half hour when Gaston Ramirez smartly clipped the ball into the middle of the area for Lambert, but the striker directed his header straight at Ben Foster.
Immediately afterwards the visitors were issued a warning about their defensive frailties when Odemwingie embarked on a swift counter and, with defenders failing to close him down, he drove a shot just wide of the post.
It was a warning that Southampton did not heed as the hosts opened the scoring nine minutes before the break. Youssouf Mulumbu found himself in acres of space down the right before playing a pass to Odemwingie who, with plenty of space ahead of him, drove a shot goalwards and the ball took a slight deflection off Maya Yoshida on its way into the net.
Lambert struck the woodwork soon after the restart after a fortuitous deflection from Gareth McAuley's attempted clearance rebounded to the striker inside the area, but his sidefooted effort hit the bar.
There was little Southampton could do, though, when West Brom scored a second on the hour.
The Hawthorns has still yet to see an Englishman score this season
Liam Ridgewell played a pinpoint ball from defence to Shane Long on the left flank and the Republic of Ireland international curled a perfect cross into the area as Odemwingie raced to power a header beyond Gazzaniga.
That effectively ended the game as a contest but West Brom came close to scoring again with just over 10 minutes remaining, when substitute Romelu Lukaku lofted the ball across the area for the onrushing Chris Brunt, but his volleyed effort flew wide of the far post.
There was just time for Southampton to almost snatch a late consolation but Foster did well to race off his line and stop Adam Lallana's poked effort as West Brom recorded a fifth win in six home games.
West Brom manager Steve Clarke said:
"Our performance was perhaps not as good as it has been but we controlled the game and we got the win we wanted.
"It's been a good start and it is not for me to take the credit. The players have been fantastic. They have got the reward for that.
"We said from the start that our primary objective was to make sure that Albion are playing in the Premier League next season."
Jose Fonte sends in a cross, Adam Lallana takes a shot. Save by Ben Foster.
The ball is swung over by Nathaniel Clyne, clearance by Gareth McAuley. Guly Do Prado takes the outswinging corner, Maya Yoshida has a headed effort at goal from deep inside the area missing to the right of the target.
Pass corner from left by-line taken by Adam Lallana to short, clearance made by Claudio Yacob.
Shot by Romelu Lukaku. Jose Fonte gets a block in.
Nathaniel Clyne produces a cross, clearance by Jonas Olsson.
Foul by Morgan Schneiderlin on Claudio Yacob, free kick awarded. Gareth McAuley takes the free kick.
Substitution Marc-Antoine Fortune joins the action as a substitute, replacing Peter Odemwingie.
Substitution Luke Shaw replaces Daniel Fox.
The offside flag is raised against Rickie Lambert. Claudio Yacob restarts play with the free kick.
Free kick awarded for a foul by Guly Do Prado on Liam Ridgewell. Ben Foster takes the direct free kick.
Inswinging corner taken by Adam Lallana.
Daniel Fox sends in a cross, blocked by Youssouf Mulumbu.
A cross is delivered by Romelu Lukaku, Chris Brunt has an effort at goal from deep inside the area missing to the right of the goal.
Steven Davis sends in a cross, Guly Do Prado has a headed effort at goal from close in which goes wide left of the goal.
Free kick taken by Jose Fonte.
Substitution Gaston Ramirez leaves the field to be replaced by Guly Do Prado.
Substitution Emmanuel Mayuka comes on in place of Jay Rodriguez.
The official flags Peter Odemwingie offside.
Corner taken by Adam Lallana.
Daniel Fox crosses the ball, blocked by Youssouf Mulumbu.
Ben Foster takes the indirect free kick.
Substitution Romelu Lukaku comes on in place of Shane Long.
The referee blows for offside against Rickie Lambert.
A cross is delivered by Daniel Fox, clearance by Billy Jones.
Substitution Chris Brunt comes on in place of Graham Dorrans.
Centre by Zoltan Gera, Jose Fonte makes a clearance. Inswinging corner taken from the left by-line by Zoltan Gera, Gareth McAuley has a header from inside the six-yard box and clears the crossbar.
Zoltan Gera takes the inswinging corner, Rickie Lambert makes a clearance.
The assistant referee signals for offside against Maya Yoshida. Ben Foster takes the free kick.
Inswinging corner taken from the right by-line by Gaston Ramirez.
Free kick awarded for an unfair challenge on Daniel Fox by Billy Jones. Direct free kick taken by Adam Lallana.
Assist by Shane Long.
59:26 Goal scored
Goal! - Peter Odemwingie - West Brom 2 - 0 Southamp'n Peter Odemwingie finds the back of the net with a headed goal from close range. West Brom 2-0 Southampton.
Shane Long delivers the ball,
Foul by Jonas Olsson on Jose Fonte, free kick awarded. Free kick taken by Paulo Gazzaniga.
Inswinging corner taken by Zoltan Gera from the left by-line, clearance made by Jay Rodriguez.
Free kick awarded for an unfair challenge on Shane Long by Jose Fonte. Free kick taken by Zoltan Gera.
Daniel Fox delivers the ball, save made by Ben Foster.
The ball is swung over by Jay Rodriguez.
A cross is delivered by Peter Odemwingie.
Nathaniel Clyne sends in a cross, clearance made by Jonas Olsson.
Foul by Morgan Schneiderlin on Zoltan Gera, free kick awarded. Claudio Yacob takes the free kick.
Jose Fonte challenges Shane Long unfairly and gives away a free kick. Zoltan Gera takes the direct free kick.
Billy Jones produces a cross, clearance by Nathaniel Clyne.
Gaston Ramirez challenges Liam Ridgewell unfairly and gives away a free kick. Free kick taken by Ben Foster.
Centre by Jay Rodriguez, Effort from 18 yards by Rickie Lambert. Centre by Daniel Fox, Jonas Olsson manages to make a clearance.
A cross is delivered by Graham Dorrans, Maya Yoshida manages to make a clearance.
The referee starts the second half.
45:00 +1:23 Half time
Half Time The referee calls an end to the first half.
Peter Odemwingie has an effort at goal from the edge of the area that misses to the right of the target.
The ball is delivered by Zoltan Gera, Maya Yoshida manages to make a clearance.
Shane Long takes a shot. Save made by Paulo Gazzaniga. Peter Odemwingie takes the chance to get an effort at goal. Blocked by Maya Yoshida. Corner from right by-line taken by Zoltan Gera.
Nathaniel Clyne sends in a cross, clearance by Liam Ridgewell.
Adam Lallana delivers the ball, blocked by Billy Jones. Corner taken by Gaston Ramirez from the left by-line, Ben Foster makes a save.
Drilled right-footed shot by Youssouf Mulumbu. Blocked by Maya Yoshida. Corner taken by Zoltan Gera played to the near post, clearance made by Jose Fonte.
Unfair challenge on Adam Lallana by Peter Odemwingie results in a free kick. Direct free kick taken by Paulo Gazzaniga.
Daniel Fox produces a cross, Ben Foster makes a save.
Rickie Lambert sends in a cross, clearance made by Gareth McAuley.
Rickie Lambert challenges Billy Jones unfairly and gives away a free kick. Billy Jones takes the direct free kick.
Youssouf Mulumbu provided the assist for the goal.
35:14 Goal scored
Goal! - Peter Odemwingie - West Brom 1 - 0 Southamp'n Peter Odemwingie gets on the score sheet with a goal from outside the area to the bottom left corner of the goal. West Brom 1-0 Southampton.
Billy Jones is ruled offside. Free kick taken by Paulo Gazzaniga.
Effort from outside the penalty box by Peter Odemwingie goes wide left of the goal.
The ball is sent over by Daniel Fox. The ball is delivered by Gaston Ramirez, Rickie Lambert takes a shot. Ben Foster makes a save. Peter Odemwingie has an effort at goal from outside the area which goes wide right of the goal. Paulo Gazzaniga makes a save. Liam Ridgewell sends in a cross,
Unfair challenge on Youssouf Mulumbu by Morgan Schneiderlin results in a free kick. Claudio Yacob restarts play with the free kick.
Jay Rodriguez produces a drilled right-footed shot from 35 yards. Blocked by Jonas Olsson.
Centre by Adam Lallana.
Graham Dorrans crosses the ball, save by Paulo Gazzaniga.
Jonas Olsson takes a shot. Clearance by Daniel Fox. Corner taken by Zoltan Gera from the left by-line, save made by Paulo Gazzaniga. Corner taken right-footed by Zoltan Gera, Jay Rodriguez manages to make a clearance.
Shane Long fouled by Nathaniel Clyne, the ref awards a free kick. Direct free kick taken by Zoltan Gera.
Claudio Yacob has an effort at goal from outside the area which misses left.
Effort on goal by Zoltan Gera from just inside the area clears the crossbar. Billy Jones produces a cross, clearance made by Maya Yoshida. Effort on goal by Shane Long from just inside the area clears the crossbar.
Left-footed shot by Peter Odemwingie.
Unfair challenge on Youssouf Mulumbu by Morgan Schneiderlin results in a free kick. Direct free kick taken by Graham Dorrans.
Liam Ridgewell produces a cross, save by Paulo Gazzaniga.
Rickie Lambert has an effort at goal from 18 yards. Save by Ben Foster.
Free kick awarded for an unfair challenge on Gareth McAuley by Jay Rodriguez. Claudio Yacob takes the direct free kick.
Claudio Yacob challenges Adam Lallana unfairly and gives away a free kick. Strike on goal comes in from Gaston Ramirez from the free kick, Claudio Yacob gets a block in.
The ball is crossed by Daniel Fox, Liam Ridgewell makes a clearance.
Daniel Fox restarts play with the free kick.
Booking Billy Jones is given a yellow card.
Unfair challenge on Adam Lallana by Billy Jones results in a free kick.
The ball is sent over by Rickie Lambert, save by Ben Foster.
The ball is sent over by Daniel Fox, save by Ben Foster.
Youssouf Mulumbu concedes a free kick for a foul on Adam Lallana. Adam Lallana restarts play with the free kick.
Corner taken right-footed by Zoltan Gera, Daniel Fox makes a clearance.
The ball is delivered by Billy Jones, clearance made by Daniel Fox.
Daniel Fox challenges Peter Odemwingie unfairly and gives away a free kick. Youssouf Mulumbu restarts play with the free kick.
The ball is delivered by Adam Lallana, clearance by Claudio Yacob. Steven Davis takes a shot from just outside the penalty area which clears the crossbar.
The referee blows for offside against Graham Dorrans. Paulo Gazzaniga takes the free kick.
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