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The arms race that is the English Premier League transfer window is beginning to heat up. Manchester United, Manchester City and others have already spent big bucks on key players to try to chase down defending champion Chelsea, but there are persistent rumors that the top clubs are looking to add more. With the new Sky TV deal kicking in the next few years, transfer fees are expected to skyrocket. While this may lead to damaging affects down the road, it creates an interesting rumor mill of player movement. The new season is just two weeks away and teams are looking to make finishing touches to their rosters. Is Cristiano Ronaldo on the move back to Old Trafford? Would Zlatan Ibrahimovic really consider a move to the Premier League? The transfer window closes August 31. Click through to see who else is rumored to be on the move to the Premier League. (Getty)