The summer transfer market is officially open and deals have already been going on all over the top flight leagues in Europe and even the world. EPL club sides have already finalized some “big money” moves this summer and players have left the Premier League as they look to improve their “fortunes” elsewhere. There are several current EPL top-notch players who've been linked with moves outside England and even Europe, including a number of big names. Here's a look at the four Premier League stars that are likely to leave the league in the coming months.

Diego Costa — Chelsea FC

Diego Costa stayed a stayed at Stamford Bridge when it appeared he would likely leave the club early January, but it seems the Spaniard is ready to leave the club this summer. According to the Sun, Costa reportedly revealed he was told by Chelsea manager Antonio Conte he's no longer needed at Chelsea and, has also made it clear that several clubs are apparently interested in his services. There has been some speculation about his return to Spanish club Atletico Madrid despite Atletico Madrid “stuck” in the Midst of a transfer ban sanctioned by FIFA.

Nolito — Manchester City

Brought to Manchester City last year summer, Nolito has made it known he wants to leave the club as soon as possible.

The Brazil forward is sick and tired of the Manchester weather and has barely featured since the turn of this year, and a possible move to Sevilla CF seemingly appears to be progressing right on course. The Spanish club should quickly confirm Nolito's capture before it gets late.

Enner Valencia — West Ham United

The Ecuador forward spent the last term on loan at Everton Football Club and it seems West Ham United are reportedly willing to let him go again permanently this summer for good this time.

Mexican Liga MX club UANL Tigres are closing in on Valencia with the Hammers boss Slaven Bilic set to sell the Ecuador international this summer to raise more transfer funds. This is one transfer “definitely” on the cards.

Emre Can — Liverpool FC

One of the most promising transfer rumors of the summer window is Juventus' desire to land Liverpool out of favor midfielder Emre Can.

The 23-year-old has reportedly been offered a new contract at Anfield, but Juventus are willing to lure the Germany international to Italy as they search for a new attacking midfielder, although Can has made no comments about leaving Liverpool.

Certainly, The Italian giants will be hard to turn-down should the 23-year-old midfielder be looking to seriously challenge for silverware elsewhere.