The Brazilian tip Willian revealed that he regretted trading between London rivals in 2020. The player left Chelsea, where he played for seven years to play in Mikel Arteta's Arsenal due to the longer contract time — the Blues offered two years against three of the Gunners. Moreover, he arrived at the rival with the promise of having a team set up for his game style, "but three months later I told my agent: 'I want to go out.'" The talk took pla…