Wednesday were the dominant side throughout a match that saw Cardiff camped in their own half for the most part. Defensive lapses and an inability to double a lead given to them by Anthony Musaba cost them dearly.
There were bright performances from the likes of Marvin Johnson, Will Vaulks, Callum Paterson and Barry Bannan but their dominance didn't turn into vast glut of clear-cut chances with the Bluebirds able to stay in the game.
Karlan Grant and Kion Etete both bundled the ball past Cameron Dawson late in the game via deflections to send the away end into pandemonium and the home side scratching their heads.
5. Marvin Johnson - 8
His best performance since arriving back in the side by some distance, you'd think. Laid on some quality balls down the line, picking up an assist for Musaba's bit of lovely, and caused a threat throughout. | UGC / Steve Ellis
6. Will Vaulks - 7
Had more of the ball than anyone else on the pitch and his influence on proceedings was apparent throughout against the side that released him a couple of seasons back. Won headers and blitzed about. Off late for Gregory. | UGC / Getty
7. George Byers - 6
Tidy on the ball and tidy off it. Couldn't make the most of a second half chance that might have been better than he first thought. | Getty / UGC
8. Barry Bannan - 7
A couple of glowing moments were vintage Bannan. Kept things moving and offered a constant outlet. | UGC / Steve Ellis