Manchester United's Shinji Kagawa (L) fights for the ball with Bayern Munich's Arjen Robben during their Champions League quarter-final first leg soccer match at Old Trafford in Manchester, April 1, 2014.
Shinji Kagawa may leave Manchester United before the end of the transfer window.Reuters

Valencia manager Nuno Espirito Santo has revealed the Spanish club are considering signing Manchester United's Shinji Kagawa before the end of the transfer window.

The La Liga side are embarking on a huge overhaul after Singapore millionaire Peter Lim bought the club earlier this summer.

Valencia have spent big during the transfer window to bolster the squad with a number of stars – including former Arsenal striker target Rodrigo and Manchester City midfielder Bruno Zuculini, who is on loan.

The Spanish club are still looking for a playmaker and Nuno confirms he is considering Kagawa, after having a £20m ($33.2m, €25.2m) bid for his first choice, Benfica star Enzo Perez, rejected.

"Kagawa is one option among many. He is a good player with a great technique," he said during a press conference, according to Valencia-based newspaper Super Deporte.

"While the market is open all possibilities are real. We have been talking for a while about Enzo Perez, but it is not easy."

Kagawa benched

After an inauspicious two seasons at the club, there have been suggestions that Louis Van Gaal is ready to made Kagawa one of the casualties of his expected clear out.

The 25 year-old offensive midfielder joined United in summer 2012, after the Premier League giants paid around £17m to secure his services. But he has failed to make the impact expected, being behind Juan Mata and even youngster Adnan Januzaj in David Moyes' pecking order last season.

Meanwhile, Van Gaal hinted at Kagawa's departure after the 1-1 draw against Sunderland, claiming he used Januzaj instead of the Japanese international as, "Kagawa did not wish to fulfil my wishes".

Furthermore, the Times reports that Valencia are also interesting in Manchester United's Javier Hernandez, with the Spanish club battling with Juventus for the Mexican international.