In Sept 2016 (prior to his HS senior year), he suffered a left knee injury originally believed to have resulted in a small piece of floating articular cartilage and would only require 2-3 weeks missed...........however, was later diagnosed to be a meniscus meniscus tear which required 3 months of rehab following surgery. This surgery was misreported as an ACL. When he returned after that season for the state championship, he then indeed suffered a left ACL.
He was then redshirted his first year (2017) at Stanford, undergoing a meniscus shaving clean up. When he came back in the spring of 2018, he suffered a setback with knee swelling which required another scope cleanup. Mills has undergone four surgeries on his left knee but none since 2018.
Mills has chosen to release very little information regarding his knee/injury history, and "medicals" this pre-Draft have been a joke............leaving a lot of questions and blanks, which would have been usually filled in past years.
What I was able to find out was that the unfortunate origin of his cascade of knee injuries/surgeries all began with what Mills admitted was a non-football activity where "I was doing what I shouldn't have"......................