So, I had a hamstring graft ACL reconstruction about 6 years ago. I tore my ACL doing a axle clean and press and just the past year got back into training, but have only been doing deadlifts for about 6 months, and started squats 2 weeks ago. There's been a few days here and there after a heavy deadlift day that I've had some knee pain, but not like the past two days. On Monday I really tried to perfect @$$ to the grass squat, but wondering if that contributed to the knee pain. Anyone else have a reconstructed ACL and deal with frequent pain?