In a bizarre moment caught on camera at the Shanghai Masters, Daniil Medvedev asked the chair umpire if he could get a ball girl to remove his sweaty t-shirt. The 16th seed struggled with cramps ...

The meniscus is a piece of cartilage that provides a cushion between your femur (thighbone) and tibia (shinbone). There are two menisci in each knee joint. Meniscus tears can be acute or degenerative.