Roy Keane tore into Marcus Rashford on Wednesday night as he said the Manchester United forward's 'general play as a footballer is shocking'.
United lost 2-0 at Arsenal in Wednesday's Premier League main event thanks to second-half goals from Jurrien Timber and William Saliba.
Rashford began the game on the bench before entering the action as a substitute in the 58th minute.
The 26-year-old touched the ball 22 times during his cameo and failed to produce any shots or key passes.
Former United captain Keane watched the game alongside Gary Neville, Jamie Carragher and Ian Wright.