I've been training for 20 years. The last year I've been working towards my long term goal of benching 315 following Westside Barbell type methods.
On my max effort days, I've been doing heavy Singles and Doubles.
For some reason, 2 weeks ago my left side has gotten incredible weak.
It's noticeable weaker in all pressing exercises. My left side even seems weaker in Triceps extensions.
I have not had any pain, so I don't think it's an injury.
I can't figure out what's going on. Maybe I injured my rotator cuff.
The only thing different I've done, is I was working on getting a muscle-up on gymnastic rings.
I did a few where my left arm flared out into a weaker position, but it didn't seem like I injured myself.
I'm going to take some time off, but I'm just puzzled.
I've never experienced this before.