Bryan Mbeumo insists the Manchester United squad still trust each other after Lisandro Martinez was needlessly red carded in Saturday’s defeat to Chelsea to pile more pressure on Michael Carrick .

United were beaten 2-0 at Stamford Bridge and are now 17th in the Premier League after losing a third match in a row.

It is also nine winless games in all competitions for the first time in 38 years and their cause was not helped by the dismissal of Martinez, sent off for two bookings inside two minutes in the second half after Morgan Rogers had given Chelsea the lead.

Martinez, whose outspoken response to a poor summer transfer window earlier in October encapsulated the turmoil engulfing the club, left Carrick facing a losing battle to save the game in west London and perhaps now his job as well.

It remains to be seen whether the 45-year-old will remain in charge for Tuesday’s Champions League game at home to Roma , though Carrick does not expect to be relieved of his duties before then.

“A lot of…