Manchester United legend Gary Neville rapped Everton goalkeeper Jordan Pickford for a reaction during defeat to Manchester City.
Pickford appeared to giggle when almost gifting City a goal in defeat at Goodison Park.
Neville, 44, expressed his feelings on Pickford's puzzling reaction.
"Why is Jordan Pickford laughing? I don't know what's funny. It's not funny," he said. "He should have saved the second goal and nearly cost his team a fourth."
Saturday's defeat made it three losses on the bounce for Marco Silva's men following their disappointing results against Bournemouth and Sheffield United.