Plymouth Argyle moved a step closer to securing their Football League survival after winning 2-1 at manager John Sheridan's former club Chesterfield.
Joe Bryan's fine curling shot gave the Pilgrims the lead before Curtis Nelson doubled the advantage from close range.
Chesterfield were given a lifeline through Guy Branston's own goal but they could not break down Argyle.
Plymouth need one more win to secure League football while Chesterfield's play-off hopes took a blow.
The Spireites must win their final two matches and hope Bradford fail to win both of their remaining two games if they are to have a chance of making the play-offs.
VIEWS FROM THE DRESSING ROOM
Chesterfield manager Paul Cook tells BBC Radio Sheffield:
"We speak all day about preparation, preparation and players don't turn up.
"We can't win every game, I've got no issues with getting beat, but you turn up.
"Good teams don't always win, don't always play well, but a game like that, which is the biggest game of our season, by a million miles. Our players knew how important that game was.
"I'm physically sick that we rolled over and just wilted."
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Live Text Commentary
Full Time The final whistle goes and the game is over.90:00 +3:58
Drew Talbot takes a shot from deep inside the box clearing the bar.90:00 +3:04
Conor Townsend challenges Joe Bryan unfairly and gives away a free kick. Paris Cowan-Hall restarts play with the free kick.87:21
Joe Bryan decides to take the corner short.84:02
The referee blows for offside against Joe Bryan. Tommy Lee takes the indirect free kick.82:48
Andres Gurrieri has an effort from just inside the box that misses to the left of the goal.79:53
Jake Cole restarts play with the free kick.79:53 Substitution
Substitution Nick Chadwick joins the action as a substitute, replacing Reuben Reid.79:53
James O'Shea gives away a free kick for an unfair challenge on Conor Hourihane.75:53
Effort on goal by Joe Bryan from just outside the area goes harmlessly over the target.73:57
James O'Shea crosses the ball, clearance made by Guy Branston.73:04
Conor Townsend sends in a cross.72:47
James O'Shea decides to take a short corner.71:38 Substitution
Substitution Sam Hird on for Neal Trotman.67:42
Alex Henshall delivers the ball, Guy Branston manages to make a clearance. Corner taken by Alex Henshall from the left by-line to the near post.67:08
Outswinging corner taken from the left by-line by Alex Henshall.64:27
The referee blows for offside. Free kick taken by Tommy Lee.63:08
Paul Wotton takes the free kick.63:08 Booking
Booking Caution for Mark Randall.62:59
Mark Randall gives away a free kick for an unfair challenge on Andres Gurrieri.
Neal Trotman gives away a free kick for an unfair challenge on Reuben Reid. Paul Wotton takes the free kick.56:06
A cross is delivered by Alex Henshall.56:03
The assist for the goal came from Alex Henshall.56:03 Goal scored
Goal! - Guy Branston - Chesterfld 1 - 2 Plymouth An own goal is scored by Guy Branston. Chesterfield 1-2 Plymouth.55:11
The ball is swung over by Alex Henshall, clearance by Paul Wotton.54:11 Substitution
Substitution Richard Brindley leaves the field to be replaced by Alex Henshall.54:11 Substitution
Substitution (Chesterfield) makes a substitution, with Armand Gnanduillet coming on for Marc Richards.53:22
The official flags Drew Talbot offside. Jake Cole takes the direct free kick.49:33
Shot by Joe Bryan from deep inside the penalty area misses to the left of the goal.47:28
Inswinging corner taken from the left by-line by James O'Shea.47:06
Conor Townsend delivers the ball, Marc Richards takes a shot. Blocked by Guy Branston.45:01
The second half begins.45:00 +2:16 Half time
Half Time The ref blows to end the first period.45:00 +2:07
The ball is crossed by Tendayi Darikwa, clearance by Curtis Nelson.42:24
Free kick awarded for an unfair challenge on Paris Cowan-Hall by Conor Townsend. Onismor Bhasera restarts play with the free kick.41:22
Mark Randall crosses the ball from the free kick right-footed from left by-line, Jake Cole makes a save.41:22 Booking
Booking Durrell Berry receives a caution.41:10
Durrell Berry concedes a free kick for a foul on Drew Talbot.39:30
The ball is delivered by Conor Townsend, Guy Branston manages to make a clearance.39:12
Drew Talbot produces a cross, clearance by Guy Branston.35:39 Booking
Booking Drew Talbot receives a caution for dissent.32:13
Inswinging corner taken by Conor Townsend from the right by-line.31:43
Conor Townsend takes a short corner.30:46
Centre by Marc Richards.25:44
Guy Branston provided the assist for the goal.25:44 Goal scored
Goal! - Curtis Nelson - Chesterfld 0 - 2 Plymouth Curtis Nelson grabs a goal from close in high into the middle of the goal. Chesterfield 0-2 Plymouth.24:56
Unfair challenge on Reuben Reid by Neal Trotman results in a free kick. Paul Wotton restarts play with the free kick.24:15
The ball is crossed by Richard Brindley.20:50 Goal scored
Goal! - Joe Bryan - Chesterfld 0 - 1 Plymouth Joe Bryan scores a goal from outside the area to the top right corner of the goal. Chesterfield 0-1 Plymouth.16:39
James O'Shea delivers the ball.15:47
The ball is delivered by Andres Gurrieri, Neal Trotman makes a clearance.14:01
The offside flag is raised against Reuben Reid. Tommy Lee restarts play with the free kick.13:38
Onismor Bhasera fouled by Tendayi Darikwa, the ref awards a free kick. Free kick taken by Jake Cole.11:37
The ball is delivered by Drew Talbot, Tendayi Darikwa takes a shot. Save by Jake Cole.10:40
Reuben Reid takes a shot from just outside the penalty area which clears the crossbar.10:15
Conor Hourihane takes a shot. Save made by Tommy Lee.7:58
Handball decision goes against Reuben Reid. Free kick taken by Tommy Lee.7:17
Tendayi Darikwa fouled by Joe Bryan, the ref awards a free kick. Tendayi Darikwa restarts play with the free kick.6:12
The referee blows for offside against Drew Talbot. Jake Cole restarts play with the free kick.5:25
Foul by Reuben Reid on Neal Trotman, free kick awarded. Tommy Lee restarts play with the free kick.1:32
Free kick awarded for an unfair challenge on Mark Randall by Andres Gurrieri. Mark Randall takes the free kick.1:11
Foul by Reuben Reid on Neal Trotman, free kick awarded. Richard Brindley restarts play with the free kick.0:00
The ref blows the whistle to start the match.
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