By Paulo Armando
Brazil international David Luiz insists he has improved both technically and tactically since making the move to Chelsea.
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It is unclear whether Luiz, who started Brazil's opening Confederations Cup victory over Japan on Saturday, will be a part of new manager Jose Mourinho's long-term plans at Stamford Bridge but the versatile defender believes he has improved since swapping Portugal for England.
"I have become a better player at Chelsea," he told Goal.
"When you open your mind you learn a lot of things, and I did this in England.
"From this I have learned to be a better technical and tactical player with Chelsea than I was when I played at Benfica."
Brazil's next Confederations Cup fixture is against Mexico on June 19, where Luiz will likely continue at centre-back alongside Paris Saint-Germain star Thiago Silva.