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.
Andre Santos move from Arsenal to Gremio gathered pace on Sunday as the defender was photographed arriving in Brazil ahead of a proposed move back to South America.
Santos, 29, was signed from Fenerbahce for £6.8million in August 2011.
However, the Brazil international has fallen down the pecking order at Emirates Stadium behind England left-back Kieran Gibbs, and following the deadline day arrival of Spaniard Nacho Monreal is now surplus to requirements.
While there has not yet been any official comment from Arsenal, a picture of Santos arriving in his homeland, where he last played for Corinthians in 2008/2009, greeted by cheering fans was posted on Twitter.
Meanwhile, Arsenal forward Lukas Podolski put a post on his official Twitter account which read: "@Andre-santos27 We will miss you man, I wish u all the very best #Gunner God bless you".
Santos made 26 appearances for Arsenal, scoring four goals. It remains to be confirmed whether the transfer will be permanent or a loan deal.