The Gunners are facing a tricky game in the round of 16 of the second tier European competition on Thursday.
While they are also focused on the Premier League, Arteta will be including several key players in this game in Greece.
Arteta told reporters during his press conference: "We've had a break of 15 days and we've played just one game. So tomorrow I'm going to put out a team that I think is the best to play.
"Then the rest of the games will take care of themselves. You cannot control that sometimes you are thinking about resting somebody and in training he gets a little issue or he gets sick.
"So tomorrow we are going to put out the team that we think is the best to play Olympiacos and the rest of the teams and games will follow."