Paul Scholes has again questioned the quality of David de Gea, claiming that the goalkeeper's "sloppy" performances are becoming a real problem for Manchester United.
Spain international De Gea produced another below-par display in Sunday's 3-1 win over Newcastle United.
Despite United's poor clean sheet record this term, the 30-year-old is still preferred to Dean Henderson between the sticks.
However, Scholes believes it could be time for his former club to change keeper.
"Yeah, [the clean sheet record is] not good enough," he told BT Sport. "We mentioned it before the game - I think that is the biggest weakness in this team.
"David again, so sloppy - it's becoming a real problem. You need to have confidence in your goalkeeper. Can you catch this short corner? He punches it into a really bad area."
Only eight teams in the Premier League have conceded more goals than the 32 United have let in this season.