Frenchman Gael Monfils is in danger of missing his home Grand Slam in Roland Garros due to a persistent knee injury. The 22-year-old suffers from Osgood-Schlatter disease which causes chronic pain in his knees and leads to the kneecap inflating. Monfils has been forced to miss tournaments in the past due to the problem and wore large bandages on both knees at the Monte Carlo Masters. He will now miss the clay court Masters events in Rome and Madrid, although Monfils has yet to rule himself out of the French Open. "Frankly, it's really hard to explain. It's something pretty serious and there is a possibility that I will not play at Roland Garros," Monfils told French sports daily L'Equipe. "From time to time, there is an inflammation of the kneecap and it's the case now. But I want to keep hope alive. For the moment I'm rested, the only thing I can do is to wait." Monfils will be desperate to play at Roland Garros as he reached the semi-finals of the tournament last year and has a lot of ranking points to defend. www.inthenews.co.uk This is not good news for French tennis and Monfils fans. It was really exciting watching Monfils work the crowd at last years FO. I think its the one slam where Monfils would really fight blood and guts for a good showing...I'm hoping he can make it.