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.
Rafael has urged Lucas Moura to join Manchester United and has claimed his fellow Brazilian is excited about the prospect of moving to Old Trafford.
Teenage midfielder Lucas is one of world football's most coveted talents and has reportedly been the subject of an offer from the Red Devils.
His current club Sao Paulo claim to have turned down a bid of €35million (£27m) for the 19-year-old, who is also a target for Inter Milan.
Lucas is presently part of Brazil's squad for the Olympics, alongside Rafael, and it appears the two have spoken about the chance to sign for United.
Full-back Rafael said in the Daily Star Sunday: "Yes, I have told Lucas he should come to Manchester United, of course."
And, when asked whether Lucas was excited about coming to United, Rafael replied: "Yes, yes!"
Another member of Brazil's Olympic squad who could be on his way to the Premier League is Oscar, who has undergone a medical at Chelsea.
Oscar has confirmed he will make a final decision on his future after the Olympics and Rafael feels the midfielder can enjoy an impact in English football.
He added: "I have heard about Oscar coming to Chelsea and he is a good player and very important to Brazil.
"I really think he will do very well in the Premier League because he is a talented player."