Four-star senior quarterback Adrian Martinez of Clovis West High School in Fresno, Calif., a Tennessee commitment, confirmed to GoVols247 on Saturday that he has arrived at Ohio State for an official visit with the Buckeyes.

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The 6-foot-2, 198-pound Martinez has been committed to the Vols for nearly six months and previously had indicated that he's firmly committed to Tennessee. But he's now one of several Vols commitments who have started to explore other options with Tennessee coach Butch Jones' staff facing an uncertain future.

Former Vols commitment Cade Mays, a five-star offensive lineman from Knoxville (Tenn.) Catholic High School, is among the other official visitors Ohio State is hosting this weekend.

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Martinez, who's currently planning to join the Vols in January as an early enrollee, is ranked the No. 155 overall prospect and No. 7 dual-threat quarterback in the 247Sports Composite for the 2018 class.

He's one of two quarterbacks in the 2018 class who currently are committed to Tennessee, along with three-star Michael Penix of Tampa, Fla.