Gainesville (Ga.) 2026 four-star linebacker Xavier Griffin has committed to the USC Trojans, he tells On3. Griffin is the nation’s No. 27 overall prospect, No. 2 linebacker and No. 5 recruit from Georgia in the 2026 cycle according to the On3 Industry Ranking — a weighted average that utilizes all four major recruiting media companies. The 6-foot-3, 205-pound Griffin was back in Los Angeles this weekend for the Trojans’ July recruiting weekend. He also previously visited Southern Cal in June with his mother. “I felt that I’m the biggest priority at USC,” Griffin told On3. “The defensive scheme…