I can guarantee it,’ Jason Kelce says as retired NFL star makes shocking CTE claim that Antonio Brown mocked [Video]

JASON Kelce had admitted that he thinks he has CTE after criticism over his Secretariat claims.

The decorated former center, 36, accused the 1973 Triple Crown winner of doping on the New Heights podcast he founded with brother Travis.

“Secretariat was juiced to the gills,” Kelce claimed.

“Secretariat just so happens to be right in the heart of the steroid era.

“[In] 1973, every NFL player, every baseball player, they were juicing them to the gills.

“You don’t think Secretariat was f***ing juiced to the rafters? Of course it’s the fastest horse of all-time.”

His comments sparked a backlash on social media, with one user claiming he may have CTE – the brain disease that his been diagnosed in post-mortems of several former NFL players.

“[Y]ou know who else makes unsubstantiated claims not backed up by facts. People suffering from CTE. …