"This kind of thing was so difficult for me, because I am someone that sees the heart as the most important thing.

"But then after that, in the professional way, I was saying, 'It is a new moment for you. It is another big thing for you to do. Maybe if you stay in the comfort zone it is not going to be the best thing for you?'"

Luiz has been a regular for Arsenal in the Premier League this season, starting 25 of their 28 games and chipping in with two goals.

David Luiz mocked by Chelsea fans on return to Stamford Bridge after being sent off for Arsenal