Arsenal captain and midfielder Mikel Arteta will be out of action for three months, while full-back Mathieu Debuchy has suffered a dislocated shoulder.

Arsenal look to sign a central defender -

Mathieu Debuchy injured his left ankle this month in a Premier League match against Manchester City.

The Black Cats' first league win of the season, following seven defeats and a draw, was secured by goals from Steven Fletcher and Fabio Borini and saw manager Gus Poyet enjoy victory in his first match in charge at the Stadium of Light.

In order to complete the move, the 23-year-old, who has been capped six times, has reportedly agreed to waive any signing-on fee, which would have amounted to a considerable sum had he waited until the summer to depart.

Kebe, 29, was born in France but has represented Mali at international level. He joined Reading from French club Lens in 2008.

Gouffran, a former France under-21 international, scored 40 goals in 179 appearances for Bordeaux, including a goal against his former club Caen that secured the 2008-09 Ligue 1 title.

Mathieu Debuchy has signed a five-and-a-half year contract at St James' Park.

France winger Mathieu Debuchy, under contract at Lille until 2015, has said he wants to leave the club and will not take part in training on Tuesday, according to L'Equipe.

Highly-rated French fullback Mathieu Debuchy said on Monday he would like to move to the English Premier League after a successful spell with 2011 Ligue 1 champions Lille.