Klubnik enrolled early at Clemson in January 2022. Throughout Klubnik's freshman season, he was used primarily as a backup to
DJ Uiagalelei. During Clemson's opening game against
Georgia Tech in 2022, Klubnik passed for 49 yards and a touchdown. He saw significant action in relief of a benched Uiagalelei against
Syracuse, a game which Clemson won narrowly in a 27–21 comeback. In the
ACC Championship Game, he entered the game after Uiagalelei was benched following the second series. He passed for 279 yards and a touchdown in the
39–10 win over
North Carolina. He was their starter in the
2022 Orange Bowl against
Tennessee due to Uiagalelei entering the transfer portal. Klubnik had to deal with constant pressure from Tennessee's defense. Despite the pressure, he helped lead Clemson to numerous scoring opportunities that did not result in points. He got sacked four times and threw two interceptions to go along with 320 passing yards. Tennessee won the
2022 Orange Bowl 31–14.
Statistics ==Professional career==