Elbow popped during OHS

I am an almost 51 year old average Crossfitter (since 2010) and experienced an elbow pop (inside of left elbow, non dominant) for the first time in any exercise....this time happened to be during overhead squats. We were in the midst of approx 35-40 total of these at different weights....pick the weight appropriate for the set. I was on a 2nd set of 3 doing 145# (my 1RM is 165# which is BW for me). On the 3rd rep coming out of the bottom I got a little forward (i think) and tried to correct and that's when I felt the pop. Scared me into bailing on the rep. No sharp pain associated with the pop and I think it was more the sensation and knowing I had 145# overhead that scared me into a quick bail. Now 2 days later, I have some tenderness on the inside of my left elbow. That arm is slightly bent and I have a little discomfort when trying to fully extend. A movement like turning the steering wheel with my left arm bothers the elbow. I am applying the RICE therapy and hope that I didn't tear or partially tear something. No swelling or discoloration. Curious what kind of things can cause that pop and how concerned should I be that I actually injured something.

Elbow popped during OHS