Ja'Marr Chase is issuing a mea culpa days after spitting on Jalen Ramsey, and then denying the disgusting act ... saying he takes "full responsibility" for his actions during the Bengals-Steelers game.
25-year-old Chase posted a lengthy apology to social media on Monday, apologizing for hocking a loogie on Ramsey during the 4th quarter of the rivalry game.
"Please know I am speaking from my heart when I say I take full responsibility for my actions during last Sunday's game at Pittsburgh.