"Sky Sports": "Man Utd" made a £40 million offer for J.Mata © EuroFootball.com

According to "Sky Sports", "Manchester United" has made an official £40 million offer to London's "Chelsea" club for midfielder Juan Mata.

It is also reported that the Spanish national team player missed today's training session with the "Blues", and the reason is a possible transfer to Manchester.

So far, there is no official confirmation from either club, but it is believed that the London team should accept this offer and J.Mata will arrive at "Man Utd" before the winter transfer window closes.

The 25-year-old footballer has had limited playing time this season at "Chelsea", so it has been speculated since the beginning of January that the Spanish player would leave the team coached by Jose Mourinho.

J.Mata joined the "Blues" in 2011 for £23.5 million and has played 135 games, provided 58 assists, and scored 33 goals in less than three seasons.