Ges revealed to the official site: "He has sprained his medial collateral knee ligament and that means, at the moment, that he is likely to be back in three or four weeks.
"He is disappointed that he is going to miss a few fixtures as he wanted to help keep us up in seventh place - but he is focused on returning for the last match of the season against Bolton.
"Although it is difficult to lose a key player like Paolo, the fact is it could have been much worse and done damage which would have affected him through to next season.
"We will have an even better idea in a couple of weeks, but the knee looks okay. It was a case of him catching his studs in the turf as he twisted to get away from the challenge."
Glenn Roeder certainly seemed pleased when he was told the news. "This is good news for Paolo and West Ham because when he suffered the injury it looked bad and he was in quite a bit of discomfort.
"But there is a good possibility Paolo will now be able to return before our final game of the season against Bolton.
Paolo isn't assigning any blame to the injury though, saying he twisted his knee on his own.
"It wasn't a bad tackle," he states. "I just twisted my knee in the ground on my own. Now the decision is made and it just looks like a few weeks. I could be better but I am okay. I was happy to win the game, anyway."
Of the situation regarding his substitution at Craven Cottage last Monday, Paolo is keen to put that behind him:
"They always exaggerate when I say something, and then it turns into a rumour. Everything is fine with Glenn. It is not because you are angry one day that you have to stay in a war.
"If something happens it is not an issue and I don't have any problems with Glenn - he is a good lad. I hope now we can keep on in this position in the league and finish seventh."