The same way he beat Rumble's stunt double: OSP is another fighter with great KO power and a poor gas tank. AJ does have better TDD but that won't matter after Glover has knocked him down and worn him out against the cage. And just last year: Rumble has a long history of choking under pressure. If he can't knock you out right away, you will likely win the fight. He turns into a panic wrestler (see the Vitor fight) and gets RNC'd every time. AJ will be surprised that another fighter is getting in his face, as Glover is a pressure fighter, he'll spam/panic some right hands that won't win him the fight, and Glover will dominate from there.