The right-back marauded forward down his flank at every opportunity, like skipper Ashley Young on the other side, and produced some telling moments during an entertaining affair against Claudio Ranieri's Cottagers.
“It was a pity he had that injury at Porto in May,” said Jose Mourinho afterwards. “I think, probably, another club wouldn't sign him when a player has knee surgery. We did it because we didn't want to lose him because of an injury. We thought it could be resolved. Now we have him. He has a lot to learn, 19 years old but, physically, he is compact.