Manchester United announce the signing of Juan Mata

Manchester United announced on Friday that they had agreed to a deal with Chelsea for attacking midfielder Juan Mata, with only a medical and personal terms required to complete his signing. Those were considered to be mere formalities, and they were completed on Saturday, with the Red Devils announcing that Mata was officially a member of the club:

Medical complete, deal done. @JuanMata10 is a Red! #mufcmata http://t.co/DmXTk5z44e pic.twitter.com/TjgzjPhWvl

— Manchester United (@ManUtd) January 25, 2014

Mata was Chelsea's best attacking player last season, tallying 20 goals and an incredible 35 assists. However, he's proven to be a player that is only at his best when a team is built around him, something that new Chelsea manager Jose Mourinho has been unwilling to do. Mata has been ineffective in his appearances for the Blues this season and has not scored a goal in the Premier League.

United reportedly paid a £37m fee to bring Mata to Old Trafford, which is a club record. They've run with a rotation of Wayne Rooney, Shinji Kagawa and Adnan Januzaj in the central attacking midfield spot, with all of those players getting starts in other positions as well. It seems unlikely that United would break their transfer record to buy a player they won't play in his preferred position, so David Moyes now faces the difficult task of figuring out exactly how to construct a team around his new star.