By Jamie Spencer Arsenal manager Mikel Arteta hasn’t ruled out “surprises” at the end of the summer transfer window as the Gunners prepares themselves to jump at an opportunity if it arrives. It comes as Arsenal have been linked with Raheem Sterling, who is among a huge group of players not part of manager Enzo Maresca’s plans at Chelsea. “We have to [be ready to move], because anything can happen both ways, especially in the last week. You have to be ready, especially in the last week, and be prepared because a lot of surprises can come, for many different reasons…and we are prepared,” Arteta…