BBC Radio 5 live pundit Robbie Savage labelled Martin Demichelis' display against Manchester United on Sunday as "one of the worst performances in Premier League history".
But has anyone outdone the Manchester City defender?
For Monday's Sportsday debate, we asked you for your opinions on the worst performances in sport. Here are the best responses:
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Woodgate's debut to forget
Plenty of people mentioned Jonathan Woodgate's name during the Sportsday debate.
After a surprise move to the Bernabeu in August 2004, England defender Woodgate waited over a year for his first start after a recurring thigh injury.
When the former Leeds and Newcastle player finally appeared for Real against Athletic Bilbao in September 2005, he scored a spectacular own goal and was sent off after picking up two yellow cards.
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'Looked like Jaap Stam. Played like his gran'
Vin Duggal: Wayne Bridge. West Ham 0-3 Arsenal in 2011. It was like he had never seen a football.
Charlie Bester: Martin Palermo missing three penalties in one game in the Copa America. God loves a trier.
Steve Jones: Paul Rachubka Leeds vs Blackpool. Kop chanting off, off, off and he was replaced at half-time by a youth team goalie.
Len Morrison: Yuji Ide in Formula 1. Was so shocking in his four races, he had his racing license taken away from him!
Gareth Davis: The 82 seconds Audley Harrison lasted against David Price in 2012.
Dean Arran Oliver: Jonathan Walters against Chelsea. Two own goals, a missed penalty and even kicked the ball against his own face.