Paul Scholes has expressed concerns Manchester United have a 'soft underbelly' after Erik ten Hag's side suffered a 4-3 loss to Bayern Munich in their Champions League opener.
The Red Devils fell 2-0 down at the Allianz Arena after Andre Onana's mistake gifted Leroy Sane the opener in the 28th minute.
Serge Gnabry then doubled the host's advantage four minutes later.
Speaking on TNT Sports, former Man United star Scholes claimed his former side were guilty of collapsing in adversity.
The pundit stressed that while Man United had done well to score three times against the German champions, he believed Bayern Munich had been capable of scoring more on the night.
'There is a weakness to them,' Scholes said. 'There is a soft underbelly and do seem to collapse a bit when things are going wrong.
'They scored three goals and that is good, but I felt Bayern could then turn it on and score another.
'I thought there was a big distance between the teams, in that second half especially.
'First half I thought they did well but still conceded two goals through a lack of concentration.
'There is experience in the team but I don’t think it is being used. Concentration in Europe is so important, once you concede one goal, it can turn into two and three.
'None of those centre halves are saying ‘look Casemiro and Eriksen get in here’.
'Are Casemiro and Eriksen saying to the wide players come in next to me, lets calm the game down.'
Man United had pulled a goal back after half-time with Ramus Hojlund scoring his first for the club following a summer move, before Harry Kane restored Bayern's two goal cushion from the penalty spot.
Casemiro scored two late goals for Ten Hag's team, either side of Mathys Tel adding a fourth for the hosts in stoppageRead on m.allfootballapp.com