Arsenal’s focus is back on the Premier League after their 5-1 win over Bolton Wanderers in the EFL Cup. Mikel Arteta made a number of changes to his side for the game on Wednesday night. Plenty of academy players got opportunities, while the likes of Jakub Kiwior, Raheem Sterling and Gabriel Jesus got rare starts as well. The Gunners will name a much stronger lineup when Leicester City come to town on Saturday, but there is a chance one of Arteta’s key players could miss the game. That could open the door for an Arsenal debut for one player. Mikel Arteta’s David Raya injury admission opens the…