8. Juan Sebastian Veron
Juan Sebastien Veron is also one of Chelsea’s Worst Ever Signing he is also on the list of Sir Alex’s Worst Ever Signings. Juan was considered as one of the best midfielders in Argentina before he joined Manchester United and Chelsea. The midfielder joined Chelsea from Manchester United for £15 million.
He performed well in his first few games for the club before he was involved in injuries his performances begun to slow down and only managed 13 appearances for Chelsea. When Jose Mourinho arrived at the club Juan Sebastien was loaned out to Inter Milan for two seasons before he was finally sold out.
His transfer to Chelsea is considered as one of the worst in the clubs history.
