Atalanta came back twice against Fiorentina as Lookman stole the show with a massive performance
Arsenal won north London derby as Gabriel's second-half header gave them a victory at Tottenham
Barella opened the scoring at San Siro with a brilliant left-foot finish
Leandro Trossard and Thomas Partey helped Arsenal secure a second consecutive victory
Arsenal started the new Premier League season with a home victory over Wolverhampton in the first round