An own-goal by Bobby Thomas in the 12th minute was followed by goals from Ivan Sunjic and Jay Stansfield's 13th of the season.
It clinched Blues' biggest victory since October and only their second win in 11and they are out of the relegation zone after Bristol City denied Huddersfield a win.
Coventry's third defeat in four left the FA semi-finalists Cup six points adrift of the top six with four games left ahead of their big date at Wembley against Manchester United next weekend.
Coventry manager Mark Robins admitted the defeat had effectively wrecked their play-off hopes.
He said: "We had to pick points up in three out of the four games we have lost and you can't do that if you are realistically challenging, so it's massively disappointing.
Diese Geschichte stammt aus der April 14, 2024-Ausgabe von The Football League Paper.
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Diese Geschichte stammt aus der April 14, 2024-Ausgabe von The Football League Paper.
Starten Sie Ihre 7-tägige kostenlose Testversion von Magzter GOLD, um auf Tausende kuratierte Premium-Storys sowie über 8.000 Zeitschriften und Zeitungen zuzugreifen.
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LUKE BOOSTED BY WALES ACE LIAM
Swans bid to mark new era in style...
MATT'S DELIGHT OVER RECORD
WYCOMBE boss Wanderers Matt Bloomfield hailed his history-makers after victory at Lincoln City.
TON-UP IAN ENJOYS HIS SPECIAL WIN
AN Evatt described his 100th win as Bolton boss as very special, although he needed Aaron Collins' injurytime goal to bring up the three figures.
DONS LACK A CLINICAL EDGE AS SADDLERS GRAB POINTS
NATHAN Lowe's strike inspired promotion-chasing Walsall to victory over AFC Wimbledon at the Cherry Red Records Stadium.
SUB GRIMES IS IN-SPIRED TO HEAD THE WINNER
CAPTAIN Jamie Grimes headed in a late winner for Chesterfield after a game of very few chances appeared destined to remain goalless.`
COBBLERS TEST IN TROPHY FOR POSH
HOLDERS Peterborough United have been drawn against fellow League One side Northampton Town in the Round of 32 of the newly-named Vertu Trophy.
HORNETS REMINDED OF GRAY'S BRILLIANCE
WAYNE Rooney expressed his delight as Plymouth extended their unbeaten league home run to six after Andre Gray's last-gasp leveller.
MARTI DOUBTING JOB AFTER DRAW
Rangers home run continues
BIG MAC'S ON TARGET TO SEE OFF THE TIGERS
LUTON boss Rob Edwards felt it was a very good day at the office as his team turned in a gritty performance to beat Hull.
Rohl confident Owls
DANNY Rohl said getting results is the only thing missing as his Owls were held at home by Cardiff.
