Ryan Nelsen believes West Ham have issued a statement of intent by tying Winston Reid to a new deal.
Tottenham are keen for striker Shaquile Coulthirst to continue his development out on loan after his spell at Southend.
With right-back Franck Beria injured, Les Dogues have acted quickly to land the 23-year-old, who was contracted with Sochaux until June next year.
However, with Les Lionceaux struggling just one place off the foot of the table, they have decided to cash in on one of their assets.
The France Under-21 international, who made 85 appearances for Sochaux following his move from Le Mans in 2011, had been linked to several of Europe's top clubs, including Juventus and Arsenal.