Match ends, Birmingham City 0, Derby County 3.

Matej Vydra scored his 16th goal of the season as Derby County gained ground on Championship leaders Wolves with victory at struggling Birmingham City.
Blues made a bright start as defender Jonathan Grounds hit the post early on.
But Johnny Russell put Derby ahead, finishing a fine run into the box with an effort that appeared to deflect off a defender and inside the near post.
Vydra rifled home to make it 2-0, and Andreas Weimann tapped in a late third as Derby moved back up to second.
With Wolves held to a goalless draw at Barnsley, Gary Rowett's Rams reduced the gap to the runaway leaders to 10 points.
The victory was his second at St Andrew's since his surprise sacking by Birmingham last season when the club were seventh in the Championship, outside the play-off places only on goal difference.
The result ended Blues' three-match winning run to leave them second from bottom, one point above Sunderland and two points adrift of safety.
Derby made a sluggish start and Birmingham, spurred on by Jeremie Boga, piled on plenty of first-half pressure and Grounds struck the woodwork with the game's first meaningful effort.
Craig Gardner also forced goalkeeper Scott Carson, who Rowett has said is worthy of an England recall, into a fine save after Russell put the Rams ahead.
Vydra clipped the bar before the break, but went on to add the second with a powerful finish to take his tally of league goals to 15 for the season - as many as Birmingham's entire team have managed in 27 games.
Weimann's final-minute effort ensured the East Midlands club cruised to a sixth league win in their eight-game unbeaten run.
Birmingham City manager Steve Cotterill:
"It was a major disappointment to come out the back of that game like we have done, with three goals against us. I don't think it was a three-goal game. Those fine margins at the moment are tough for us.
"At the start of the game we were delighted with how we were playing. We had a good pattern to us and a good shape to us, with and without the ball. Then, when you go a goal or two down, the lads start doing things off-the-cuff a little bit.
"You lose your shape even more and then we got ragged in the second half. We haven't seen that for a few weeks now. There are things there we need to work at again. There are a couple of disappointing aspects when you look at their goals."
Derby County manager Gary Rowett told BBC Radio Derby:
"Territorially, they put us under some pressure, but certainly not really in terms of quality.
"There weren't lots of chances in that opening exchange. The first moment of real quality was our first goal. We've scored lots of different goals this year but in terms of how we wanted to play at times, that was a good example.
"We felt as though we could drag their press out and we felt as though if we could isolate one or two of their midfielders in front of the back four, we could get at them and create space. We relaxed a little and played some good football."
Line-ups
Birmingham
Formation 4-2-3-1
- 13Stockdale
- 5Colin
- 4Roberts
- 12Dean
- 3Grounds
- 8Gardner
- 6KieftenbeldBooked at 77mins
- 19Maghoma
- 26DavisSubstituted forAdamsat 66'minutes
- 20BogaSubstituted forJotaat 83'minutes
- 18Gallagher
Substitutes
- 10Jutkiewicz
- 14Adams
- 17Ndoye
- 25Dacres-Cogley
- 27Jota
- 28Morrison
- 39Trueman
Derby
Formation 4-2-3-1
- 1Carson
- 14Wisdom
- 6Keogh
- 33DaviesBooked at 33mins
- 3Forsyth
- 44Huddlestone
- 34Thorne
- 7RussellBooked at 73mins
- 23VydraSubstituted forMartinat 87'minutes
- 10LawrenceSubstituted forWeimannat 78'minutesBooked at 78mins
- 17WinnallSubstituted forNugentat 69'minutes
Substitutes
- 9Martin
- 12Baird
- 16Pearce
- 19Weimann
- 26Hanson
- 28Nugent
- 35Mitchell
- Referee:
- Lee Probert
- Attendance:
- 22,121
Match Stats
- Possession
- Home52%
- Away48%
- Shots
- Home14
- Away12
- Shots on Target
- Home2
- Away7
- Corners
- Home6
- Away4
- Fouls
- Home7
- Away13
Live Text
Post update
Full Time
Second Half ends, Birmingham City 0, Derby County 3.
Post update
Attempt blocked. Che Adams (Birmingham City) right footed shot from the left side of the box is blocked. Assisted by Craig Gardner with a cross.
Post update
Corner, Birmingham City. Conceded by Curtis Davies.
Goal!
Goal! Birmingham City 0, Derby County 3. Andreas Weimann (Derby County) right footed shot from the centre of the box to the centre of the goal. Assisted by David Nugent.
Post update
Attempt saved. Tom Huddlestone (Derby County) left footed shot from the centre of the box is saved in the bottom left corner. Assisted by David Nugent.
Post update
Delay over. They are ready to continue.
Substitution
Substitution, Derby County. Chris Martin replaces Matej Vydra because of an injury.
Post update
Delay in match Matej Vydra (Derby County) because of an injury.
Post update
Jonathan Grounds (Birmingham City) hits the right post with a header from very close range. Assisted by Craig Gardner with a cross following a corner.
Post update
Corner, Birmingham City. Conceded by Curtis Davies.
Post update
Corner, Birmingham City. Conceded by Richard Keogh.
Substitution
Substitution, Birmingham City. Jota replaces Jeremie Boga.
Post update
Foul by Sam Gallagher (Birmingham City).
Post update
Curtis Davies (Derby County) wins a free kick in the defensive half.
Booking
Andreas Weimann (Derby County) is shown the yellow card for a bad foul.
Post update
Jacques Maghoma (Birmingham City) wins a free kick in the defensive half.
Post update
Foul by Andreas Weimann (Derby County).
Substitution
Substitution, Derby County. Andreas Weimann replaces Tom Lawrence.
Booking
Maikel Kieftenbeld (Birmingham City) is shown the yellow card for a bad foul.