Bubby collided with another soccer player a few weeks back and hyper-extended his right knee. He seemed to recover quickly, but after a few days it started to hurt. I took him to the orthopedic doctor who took x-rays and found a surprise. Bubby has an 'osteochondroma', a benign bone tumor. He's pretty sure it's not the cause of his pain and is thinking it might be his meniscus, but is ordering an MRI just to be sure. Until then, he told him to 'play at own risk'. Bubby continues to play...and I continue to hold my breath.