The 20-year-old started at left-back once again while wearing the captain's armband as the Blues took on Erik ten Hag's side at Old Trafford, but the evening was disappointing for both the defender and his teammates.
Colwill felt upset, convinced that McTominay's header, which turned out to be the game-winning goal, ought to have been disallowed. Alejandro Garnacho's cross was headed towards McTominay, who brushed off Colwill at the back post. Video assistant referees looked to see if the midfielder from Scotland had fouled. Colwill thought that if the positions had been reversed, a penalty would have been issued, but the goal remained since it was judged that there was not much contact.