Mallet finger injuries (also known as Baseball finger) generally occur during sports-related activities (baseball, softball, soccer, kickball, etc.). This injury can happen to any athlete at any age. It occurs when a force, or in this case a ball, strikes the end of the finger. It will force the fingertip to bend, causing damage to the tendon that allows it to straighten. This diagnosis can be mistaken for a “ball jamming” injury.