Gittens netted a stunner to calm Chelsea’s jangling nerves in the 90th minute, ripping a half-volley past Sa, kissing the post on its way in, but just one minute later, the Blues were up to their old self-sabotaging tricks again, as Wolfe ghosted in at the back stick once more to clip over Filip Jorgensen and set up a grandstand finale. Maresca’s men held out, however, and they – just about – are in the hat for the last eight.