You can argue whether that goal should be within the rules or not, but the officials undoubtedly made the right call given the current interpretation of the rule.
I think think the offside rule is currently too liberal and weighted too far in favour of the attacking side, though.
I'd have no problem with goals such as Fiorentina's one tonight not being allowed.
- - - Updated - - -
Destro is over rated. Welbeck and Sturridge show the same promise if not more and that doesnt say much.
Welbeck doesn't have a first touch.
Sturridge is an idiot.
Destro will end up a far better player than either of them.