Manchester United striker Marcus Rashford reportedly had concerns about his partnership with Romelu Lukaku.
The duo were teammates for two seasons, before Lukaku chose to leave for Inter Milan this past summer.
And The Athletic says Rashford was never sure how to strike up a quality partnership with the Belgian.
And Rashford felt then boss Jose Mourinho favored Lukaku, even when he played badly.
Lukaku has thrived at Inter until Antonio Conte and is currently one of the top scorers in Serie A.
Rashford was also enjoying his best ever scoring season for United before suffering a back injury that has almost surely ended his season.