Of course the club are interested in Robert Green, primarily because he's a good goalkeeper, secondly because he's available on a free. His situation has been known for some while and it has been almost common knowledge he would be leaving Hammers this summer. It has also been known for a while that Sam Allardyce is a huge admirer of Paul Robinson and is trying get him to Upton Park.
Getting back to Green, he doesn't have that physical presence taht some keepers have and he doesn't have the same aura about him keepers like Joe Hart show, but nonetheless, he is a keeper who always shows great concentration during games, has good distribution and is an excellent shot stopper. However, there remains a doubt about his 'bouncebackability' from his WC howler. A decent season in the championship in a winning side, does not mean he has fully recovered from his ordeals of a couple of years ago.