"I know that the attempts to intimidate me on the pitch will start again immediately - but everyone finds sooner or later that it is difficult to make me lose my rag," the Portuguese ace told the Sun.

"I'll be booted again but I will not kick out when it happens. I'm tough and, again, it's all just part of the spectacle."

The 23-year old winger underwent a knee operation last June and made his return to the Red Devils against Villarreal last Wednesday in their Champions League opener.

"I'll do my damage as usual by paying them all back with my goals."

Chelsea are topping the Premier League table with 10 points while the defending champions are 14th with only 4 points.

Meanwhile Ryan Giggs confirmed that he is not worried about the team's slow start of the season.

"Pressure is on, but also you should not panic. We are capable of going on a ten-game run of winning every game, that is the players we have got and the experience we have got," he told Skysports.com.

"We are not happy with how we are playing, but don't get carried away there is a long time to go at the moment."