Thumb knuckle keeps cracking (popping)

[Hurting Elbow]

My thumb knuckle keeps cracking, between the phalanges and metacarpal, all day but espeically at night. I know it's from tennis since it started on my left hand when I went lefty. Happen to anyone else? Grip size issues?

 

[bodyjohn]

My thumb knuckle keeps cracking, between the phalanges and metacarpal, all day but espeically at night. I know it's from tennis since it started on my left hand when I went lefty. Happen to anyone else? Grip size issues?

i need help with same issue!

 

[Hurting Elbow]

Since I've been playing with the Wilson Clash tour I've have no problems. I even put in Solinco poly and nothing.