When playing cricket the ball hit inside my left hand thumb and I felt pain and having swelling. In x ray its normal. Not broken. I can move my thumb and there is some pain when I try to bend my thumb. When giving pressure to the thumb to hold something I feel pain. I felt my thumb do not have a support form back and it will bent backwards. It happened last friday (14/02/2020) afternoon. Still have little swelling and some dark colour change inside like blood clot on the backside of the thumb joint.