Nicolas Gaitan
Manchester United and Chelsea have been boosted in their pursuit of Nicolas GaitanGetty Images

Nicolas Gaitan is set to leave Benfica and make a switch to the Premier League this summer, according to the Portuguese publication Record.

The 27-year-old has been a regular inclusion in his side's starting XI this season and played a key role in helping his side win the league title. The Argentine international's form has attracted interest and he is considering his options.

Gaitan's representatives Luis Filipe Vieira and Jorge Mendes have flown to England in order to negotiate a deal. However, the report has not confirmed the club he would be joining in the summer transfer window.

Manchester United have long been interested in signing the winger. The 20-times English champions were also considering a move in signing him in January. However, the deal did not take shape as he continued at Benfica.

In addition to this, another Portuguese newspaper A Bola earlier revealed that Chelsea are also in the race to secure a deal with Benfica for Gaitan. The same report also claims that Valencia, Granada, Hamburg, Celtic, Reading and Sassuolo have all sent their scouts to watch the player in action.

With the winger's representatives in England to help their client secure a transfer deal, it is likely that the other clubs will end their interest in Gaitan. He has a €35m (£24.8m, $38.5m) release clause in his contract.

It should be seen if Louis van Gaal's side and the Premier League champions will meet the asking price of the player, whose contract at Benfica runs down in 2018.

Meanwhile, Chelsea manager Jose Mourinho has admitted that winning the title after the Blues 1-0 victory over Crystal Palace was the best moment of this season.

"It was when the game against Crystal Palace finished because it's a moment when you feel you are champions," Mourinho said in his pre-match press conference for Sunderland clash.

"I had that feeling for many months, I couldn't say it to you or the players, but I had the feeling for many months."