Rotator Cuff?

[vitor]

Chest Day, Did my normal

135 X 12
135 X 15
225 X 13
315 X 10
Then on my last set 335, on my 5th rep went low, heard kinda like a small pop felt like a ripping feeling and the weight got heavier, called my spotter in, and racked the weight. Finshed my workout with light weights, shoulder is a tad sore, but nothing unbearable, never had this happen any ideas?

 

[tbonus]

Not sure if it's rotator cuff. When I tore mine it was a gradual thing. Didn't have any one event, it just continued to get progressively worse over time. I'd ice it and give it a break.
You might see an ortho if it doesn't get better on its own. Could have pulled a tendon in your shoulder.