Even with what looks like clear video evidence, Ja'Marr Chase is denying he spat on Jalen Ramsey during the Bengals vs. Steelers game on Sunday ... claiming it simply didn't happen.

The NFL will investigate the incident between Pittsburgh Steelers defensive back Jalen Ramsey and Cincinnati Bengals wide receiver Ja’Marr Chase that ended with Ramsey being ejected from Sunday’s game...

Massive rookie defensive lineman Yahya Black — and later director of player development Darrel Young — had to hold Ramsey back as he and Chase continued to try to go after one another.