David Luiz has admitted his surprise over Gabriel Martinelli's mentality after joining last summer. The defender also revealed he did not know who his compatriot was when he turned up as a relative unknown.
Martinelli joined from Brazilian outfit Ituano and was not expected to make much of an impact. But the 18-year-old is Arsenal's top goalscorer behind Pierre-Emerick Aubameyang, ahead of the likes of Alexandre Lacazette and Nicolas Pepe.
It has led to talk of the teenager being named among some of the best youngsters in the Premier League. And Luiz has revealed how the wonderkid's mentality has played a big part in that.
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