The Scotland international has headed to Marseille until the end of the season.
The Argentine has returned to his former club but only until the end of the season.
Sunderland have been linked with former Newcastle United winger Charles N'Zogbia.
The Queens Park Rangers midfielder has joined Swansea on loan.
Saido Berahino, linked with Tottenham Hotspur, Newcastle United and Stoke City, seems set to remain at West Bromwich Albion.
Livingston have reportedly enquired about signing Rangers striker Nicky Clark.
Patrick Roberts joined Celtic on loan from Manchester City on transfer deadline day.
The latest transfer news relating to Tottenham, Leeds United, Middlesbrough, Leicester City, West Brom and many others.
On a day that was supposed to be about players moving, a summer managerial transfer stole the headlines.
The West Ham midfielder is delighted to now be a team-mate of the 28-year-old's.
Taking a closer look at the Chelsea and Liverpool play-makers' performances in the league this season.
Paul Parker believes Jack Wilshere needs to change his style and eradicate fitness issues to have a future at Arsenal.
Tottenham Hotspur have slipped away from Champions League contention and must strengthen their squad significantly to have any chance next season.