My Thumb Was Hit By A Cricket Ball 10 Days

My thumb was hit by a cricket ball 10 days ago, hit the top bending it backwards. Immediate pain and couldn't bend it at all. Stayed like that for a few hours. Over the next few days it eased with Only slight swelling remaining. Now it doesn't hurt, unless I try to bend the thumb against pressure. But when I bend and straighten it I can feel a clicking sensation. Is it just. Sprain or perhaps a chipped bone?