Michael Carrick acknowledges Manchester United's travelling fans after their defeat to Como at the Giuseppe Sinigaglia Stadium. (AFP pic)COMO: Michael Carrick admitted Manchester United were difficult to watch during an "unacceptable" 4-1 Champions League thrashing by Como on Wednesday, but insisted he is not concerned about losing his job as manager.

The three-time European champions were outclassed by the Italian debutants at the Stadio Giuseppe Sinigaglia as the embarrassing defeat extended their winless run to seven matches in all competitions.

Carrick's position has come under scrutiny amid United's slump, which has included their worst start to a league season for 40 years, but he told a press conference that he was not fearing for his position.