Arsenal head coach Mikel Arteta has had his say on Leandro Trossard's injury situation ahead of the "difficult and tough" Premier League battle against Chelsea on Sunday.

Arsenal is the best team in Europe right now, no matter what manager Mikel Arteta says.

Chelsea and Arsenal collide in west London on Sunday in a massive game at the top of the Premier League.

Real Madrid heads to Piraeus on Wednesday looking to cement their place in the automatic qualifying spots as they face an Olympiacos team searching for their first win in this year's competition.

Atalanta is 2-1-1 and coming off a 1-0 victory over Marseille in Matchday 4 in which Lazae Samardžić scored the winner in 90′, his second goal of the Champions League.