Chelsea had the busier transfer window during the month of January than any other club. Jose Mourinho saw Kurt Zouma, Mohamed Salah and joining the squad but the transfer that made the headlines all over the world was not a signing that Chelsea made but a sale instead.
The Spanish midfielder Juan Mata saw his way out of Chelsea and joined Manchester United with a price tag of €37 million. Even though Mata has enough abilities not only to play on the starting lineup of Mourinho, this is something that the Portuguese coach has implemented on many clubs where he has taken charge.
Back when Jose Mourinho was dictating Real Madrid, the player that could not fit in his system was Iker Casillas who had to stay on the sidelines for the majority of the time that Mourinho was in charge of the Spanish club.
Mourinho has already shown his intent of building the current Chelsea squad around the Brazilian Oscar and selling Juan Mata to Manchester United was a message of just how much faith Mourinho has on the Brazilian midfielder.
Considering the lack of games and incidents that Juan Mata has had with Mourinho it really is no surprise that he made his way out of Chelsea but the real shocker was that Manchester United came out as his next destination, a direct rival and opponent for the Premier League title.
Michael Essien is another player that saw his way out of Chelsea and joined the Italian side Ac.Milan while Kevin de Bruyne was sold to Wolfsburgh with a price tag of €17 million. The last player that Mourinho and Chelsea managed to sign in the month of January was the 19 years old Kurt Zouma with a contract that sees the young defender staying in the Premier League club for the next 5 years.