Arsenal extended their perfect start in the Champions League with a 2-0 victory over Olympiacos at the Emirates Stadium on Wednesday, but the win came with a potential injury concern for defender Gabriel.
West Ham's unbeaten European record was reduced to ruins in Athens as they crashed to a 2-1 Europa League defeat at Olympiacos.
Daniel Podence signed a new contract with Wolves but will spend the current season on loan with former club Olympiacos.