Zian Flemming struck twice off the bench during the extra 30 minutes as the Clarets took longer than expected to claim an otherwise deserved victory.
Scott Parker opted to make all 11 changes, but they were still a number of eye-catching displays.
Here’s how Burnley’s players rated:
13. SUB: Bashir Humphreys - 7/10
For Sonne, 87 Got forward well out of position down the right, always supporting Mike Tresor as Burnley chased a late winner. Photo: Molly Darlington
14. SUB: Mike Tresor - 8/10
For Koleosho, 87 Brought some much-needed quality in the final third on his long-awaited return to the side, setting up Flemming’s goal. Photo: Lewis Storey
15. SUB: Zian Flemming - 8/10
For Barnes, 94 Decided the game off the bench with his brace. Calmly steered home from Tresor’s pullback before putting the game to bed from close range. Photo: Warren Little
16. SUB: Josh Laurent - 6/10
For McDermott, 105 A little fortunate not to give away a penalty with his first touches, but otherwise helped the Clarets take the sting out of the game late on. Photo: Molly Darlington