Manchester, Oct. 20 -- Former Manchester United defender Gary Neville has reported tensions in the club's dressing room, suggesting that forwards Amad Diallo and Lisandro Martinez may have been involved in a disagreement, according to Goal.com.

The reported rift comes after Manchester United suffered a 2-0 defeat away to Atletico Madrid in the UEFA Champions League last week, with the English side struggling to make an impact in the match.

Following the defeat, Martinez appeared in an interview with Amazon Prime, where he openly criticised the club's technical director, arguing that Manchester United had not invested enough in strengthening the squad during the previous summer transfer window.

Diallo posted on Snapchat after the Argent...