Chelsea defender Thiago Silva believes Arsenal's title charge is being spearheaded by Brazilian duo Gabriel Martinelli and Gabriel Jesus.
All three are together with the Selecao at the World Cup.
He said: “You can see the connection they've had this season with Arsenal – it's a big reason why they're top of the Premier League.
“Jesus, we've known about his quality for a long time, but Martinelli is really showing what he's about.
“He's playing without fear and, if he gets the chance to play, I don't think it will faze him and he'll just do what we know he can do.
“I think all attacking players at the top level need that little bit of arrogance – that they know they can do something special – and he has that."