Yes, freshman year. Got concussed early in his match on 2/6 against O'Malley (Drexel), injury forfeited. Didn't compete again until the EIWA four weeks later. Got two MDs, then another concussion in the semis against Incontrera (Penn). Went 1-2 at NCAAs, clearly not up to his former self.
Pretty sure the two concussions were independent events.