Eberechi Eze paid his former club QPR a visit on Saturday in a move which may not go down well with his current side Crystal Palace.
The winger, who joined Palace from Rangers for £20million this summer, sat in the directors' box at Loftus Road as the Hoops played Fulham in the FA Cup, behind closed doors.
Palace boss Roy Hodgson this week made it clear to his players that no further breaches of Government coronavirus guidelines will be accepted after captain Luka Milivojevic breached the rules on New Year's Eve.