“It’s a crazy world. Nobody is away from that.
“It’s not about United, it’s not a problem of a specific club or department in world football. It’s beyond that person. It happens everywhere.”
Foden is a doubt for City’s home Premier League clash with Crystal Palace on Saturday (12:30 BST) after picking up an ankle injury at Old Trafford.
City, currently sixth in the table, remain without the injured Erling Haaland, Rodri, John Stones, Manuel Akanji and Nathan Ake.