Manchester United boss Ole Gunnar Solskjaer has allegedly been left questioning the desire of his first-team squad.
Solskjaer was recently appointed as the club's manager on a permanent basis, but the Norwegian has witnessed his team lose five of their last seven matches.
The latest setback came in midweek as United suffered a 3-0 defeat against Barcelona, and according to The Sun, Solskjaer did not hold back in criticising the performance.
United initially made a bright start at Camp Nou, but the report claims that Solskjaer was not convinced that some of his players gave 100% during what turned out to be a capitulation against the La Liga leaders.
The North-West giants find themselves in sixth position in the Premier League standings, with fourth place being required to secure a spot in next season's Champions League.