The game is scheduled to start at 5 p.m. CT.
Ole Miss, the No. 12 overall seed, enters the matchup 43-19 overall. The Rebels won 4-3 over Florida State on Saturday.
Florida State and Southern Miss will play at 1 p.m. CT on Sunday, with the winner moving on to face Ole Miss later Sunday.
How to watch Ole Miss baseball in NCAA Tournament Oxford Regional championship game
Location: Oxford-University Stadium/Swayze Field at Ole Miss in Oxford, Mississippi
Game time: 5 p.