Defender David Luiz said he decided to move from Chelsea to Premier League rivals Arsenal for a different challenge after an "honest conversation" with manager Frank Lampard about the Stamford Bridge club's new direction.
Luiz, 32, made a deadline day move across London to Arsenal where he signed a two-year contract after spending three seasons in a second stint with Chelsea. He made his Arsenal debut last weekend in a 2-1 home win over Burnley.