While numerous high-profile transfers are expected to take place during the approaching summer window, the reported move involving Atletico Madrid talent Diego Costa could be the biggest. Though he continues to prepare for the highly anticipated UEFA Champions League final against Spanish rival Real Madrid, the 25-year-old striker is expected to depart Los Rojiblancos for Barclays Premier League affiliate Chelsea at seasons end. The Blues failed to secure their place atop the competitive English League this season and with nothing but trophies in mind heading into the 2014-2015 campaign, boss Jose Mourinho and company are set on revamping the teams roster in order to find success on multiple levels.

In 34 La Liga contests this season, the Brazil native has registered 27 goals and 3 assists while guiding his side to the top of their league and a place in the aforementioned UCL final. A dynamic scorer capable of taking over any match, Costa stands as a tremendous addition to a Chelsea club looking to solidify themselves as a top-flight squad. Though his link to Stamford Bridge has been widely known for some time, Costa said recently that he's comfortable with his current club in Spain and is only focused on taking down Real Madrid on May 24.

“I feel good at Atletico, I am happy in Madrid,” he said. “We will see what happens. There are offers, but it is too early yet to talk. Now I am just thinking about the end of the season because I want to win the Champions League and La Liga.” With a reported $53 million deal already reached, Costa will certainly put everything he has on the line against Real Madrid and even though he says he's comfortable in Spain, many expect one of the world's top offensive threats to depart the Spanish Primera Division for the top league in England.