It seemed to me (judging by Warner's comments) that the issue was that Warner 'walked to' Sharma, instead of just walking to his fielding spot- sort of the equivalent of running in to a fight to get involved.
When I saw the clip I didn't hear the English jibe, but clearly Warner (and Maxwell) went out of their way to rip into Rohit for something that had nothing to do with either of them. I don't know if "Speak English" is all that racist to be honest, really immature and juvenile yes but any sensible person should laugh it off at the sheer stupidity of a remark like that.
All this 'sledging' is getting real old, these guys are acting like dumb school kids.
At least have a legit reason to be mouthing off.
Rohit being made out to be Mr. Clean in all this but he's not afraid to open his big mouth either.