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.
Mike Phelan has emerged as the favourite to be the next Middlesbrough boss following a surge of support at bookmaker Sky Bet.
The firm has reported a run of bets on the former Manchester United assistant manager taking the Boro job as his first managerial position, having left Old Trafford along with Sir Alex Ferguson at the end of last season.
Tony Pulis was installed as the initial favourite but has since drifted out from 6/4 to 8/1 to take the post, while caretaker-boss Mark Venus, Stuart Pearce (both 20/1), Martin O'Neill and Alex McLeish (both 22/1) are considered alternative options.
Sky Bet football trader Chris Spicer said: "We initially pitched Pulis as the favourite in what was a pretty wide-open market but Phelan has attracted the majority of the backing since Tuesday evening.
"Phelan has made it clear that he is interested in making the step into management and has the perfect preparation having worked under the very best at Old Trafford."