Manchester United manager Michael Carrick voiced his anger and frustration after an "unacceptable" 4-1 Champions League thrashing by Italian debutants Como, managed by Cesc Fabregas. The defeat at Stadio Giuseppe Sinigaglia extended United's winless streak to seven matches across all competitions and highlighted their worst league start in 40 years. Despite mounting pressure, Carrick insisted he was not concerned about his job. United conceded early to Nico Paz and were 4-0 down before Joshua Zirkzee scored a late consolation. Carrick admitted the performance was "tough to watch" and a stark contrast to their previous game against Leeds. His team faces Bournemouth next in the Premier League.