Having now seen it a dozen times in as many seconds, I'd like to complain about Schelotto. Why the hell did he turn away from goal before we'd scored? If Cech had saved it, Schelotto should have been en-route to the rebound.
One of 2 things happened:-
Schelotto realised his work was done and as right back was now hideously out of place.
Or, the more likely scenario
Someone in the North Stand threw a rabbit shaped squeaky toy, and he set off to fetch it.