Puberty is reportedly behind Jose Mourinho’s decision to deny Marcus Rashford full 90-minute appearances at Manchester United.
Nineteen-year-old Rashford has been withdrawn around the 80-minute mark on three of his last four starts for the Red Devils.
And, according to The Sun, that is because the teenager is suffering from growing pains, which are causing fatigue.
The Sun claim that Rashford is hitting the wall around 80 mins and that he suffers from cramp if he is not taken off.
Rashford only made his senior debut for United last season in February, but he has quickly become a first-team regular at Old Trafford.
The England international has been involved in 13 of United’s 16 games so far this season, including eight in the Premier League.
He has scored four goals for far this term, bagging a late winner at Hull City, before finding the net against Watford, Northampton Town and Leicester City.
Up next for United and Rashord is a trip to Turkey to play Fenerbahce in the Europa League on Thursday.