Wilshere did not receive a new contract to stay on with his boyhood club this summer after not receiving promises of regular first-team action under new boss Unai Emery.
Once touted as the future star of English football, Wilshere has sadly seen his career blighted by injuries.
While he did manage to re-establish himself within the Gunners first-team last season, he struggled for consistency and was ultimately left out of the England team which played at the World Cup in Russia.
Wilshere when fit is still one of the most destructive midfielders in the Premier League and many Hammers fans will certainly be excited about his signing.
However, at the same time, the East Londoners have been criticized for the way in which they have cared for injury prone players in the past and this is something which concerns Bellamy.
“I’m always concerned with his injuries, I really feel for him,” Bellamy said.
“I think there must be a problem there somewhere and I’m petrified that West Ham don’t have a great record with injured players.
“Then it changes because if he’s fit he’ll be a brilliant player for West Ham.
“But my concern is him staying fit and being able to play for West Ham.”