Neil Etheridge 7
Made a number of hugely important saves, especially when Birmingham were on top, to keep the Bluebirds in the game.
Lee Peltier 6
Mostly solid but early on the visitors did have some joy down his side early on.
Curtis Nelson 8
What a way to mark your first start, with a goal. The goal gave him a little boost in defence too and he appeared to grow a few inches.
Aden Flint 6
Was made to work by the tricky Birmingham midfielders, but put in a couple of last-ditch blocks to keep the Blues at bay. Good in the opposition box, too.
Joe Bennett 6
Danny Crowley and Fran Villalba exploited the Cardiff City left-hand side on more than one occasion. But was a different beast in the second half.
Marlon Pack 6
A calming presence on the ball but the stand-in skipper was caught napping with a few breaks past him in midfield.
Joe Ralls 9 (star man)
Scrappy and tenacious when called upon in defence but it was at the other end of the pitch he did the damage with the hat-trick.
Leandro Bacuna 6
Close to rekindling the form of a few weeks ago. Strong and abrasive in defence and quick and direct in attack.
Nathaniel Mendez-Laing 8
Showed glimpses of his lung-busting runs and physicality once again this week. Brilliant for Ralls' second. Will be an important player moving forward.
Junior Hoilett 7
Had one brilliant effort tipped over the bar and his delivery is probably in the best in this Cardiff City squad. A great display from him.
Danny Ward 3
Had one gilt-edged chance in the each half that he failed to convert and a mindless challenge to get a red card.
SUBS
Omar Bogle (on for Mendez-Laing) 5
Not much to speak of but gave the ball away a couple of times when the pressure was on late on.
Callum Paterson (on for Hoilett) 6
Was used as a target man late on in the piece and tried his best to disrupt the opposition defence.
Sol Bamba (on for Nelson) N/A
Not on long enough to impact the game, but it was great to see him on the pitch nonetheless.
