Danny Murphy and Ian Wright join Gary Lineker in the studio for Match of the Day at 22:30 GMT on Saturday, with highlights of six games including Arsenal v Stoke and Leicester v Manchester City
A lot of people questioned Chelsea's decision to re-sign Brazil defender David Luiz from Paris St-Germain on transfer deadline day, but he is proving to be the perfect fit for their 3-4-3 system.
I understand why there were doubts - while Blues manager Antonio Conte is known for his teams' defensive discipline, Luiz's problem is that sometimes he will switch off and he can be a little bit complacent.