Bruno Fernandes has reportedly been left angry by Manchester United's business in the summer transfer window, with the club failing to land top target Jadon Sancho.
The Red Devils added Donny van de Beek, Alex Telles, Edinson Cavani and Facundo Pellistri to their squad during the summer, while Amad Diallo will officially arrive in January.
United were unable to sign Sancho from Borussia Dortmund, though, and also did not bring a new centre-back to the club despite the team's issues in a defensive area.
According to journalist Duncan Castles, speaking on the Transfer Window Podcast, Fernandes was unhappy with his side's business over the summer, with the Portugal international feeling that the incomings did not match the expectations he had after arriving earlier this year.
The 26-year-old, meanwhile, was allegedly involved in a row with his teammates during the interval of the 6-1 defeat to Tottenham Hotspur in the Premier League earlier this month.
The Portuguese has been in excellent form for Ole Gunnar Solskjaer's side since arriving in January, scoring 14 times and contributing 10 assists in 26 appearances in all competitions.