5 players you didn't realise moved in January

John Obi Mikel: Tianjin TEDA to Middlesbrough: Free

Mikel makes his debut for Middlesbrough. It seems likely he will be a fixture at the Riverside Stadium.

With 374 appearances in 10 seasons at Chelsea, John Obi Mikel played more for the Blues than Didier Drogba, Ashley Cole, and Claude Makelele. He is a familiar face for any longtime fan of English football. Now, the Nigerian, whose initial move to England was so controversial, returns once more.

Primarily remembered for his contributions at the base of midfield, where he succeeded Michael Essien, Mikel has also demonstrated his creative powers in international appearances for Middlesbrough, in a more advanced role. Still only 31 years old, Mikel will add quality, versatility and experience to a Middlesbrough side right in the mix for a promotion spot. It is not inconceivable that he will be playing at Stamford Bridge once again next season, albeit in unfamiliar colours.