Tyreek Hill's very fast ... for a football player, according to U.S. track star Christian Coleman who tells us Cheetah's 60-meter run was "impressive," but not world-class.
27-year-old Coleman -- the fastest man to ever run the 60m (6.34 seconds) -- joined Babcock on the TMZ Sports TV show (airs weekdays on FS1) ... and was asked for a scouting report on 29-year-old Hill's performance at the USA Track Masters Indoor Championship event in Louisville, KY on Saturday.
"In my opinion it was impressive.