The summer transfer window—whether you like the plethora of speculation that it brings or not—has the ability to transform an entire season before it even begins.
Every team has the ability to become genuine contenders with one or two signings; every team can also go from contender to pretender with the loss of one or two players—it's what the transfer window can do.
And whilst the big names of this year's transfer window such as Eden Hazard, Shinji Kagawa and Luka Modric all receive their fair share of speculation and rumor, every English Premier League team will have their eyes set on certain players that they'd lose to bring in for next season.
From Arsenal to Wigan Athletic, every team has that one player they'd desperately love to secure in the summer transfer window in order to strengthen their league position next season.
Here's that player to watch for every Premier League team.