Alabama and Troy will meet in the NCAA's Tallahassee regional, while South Alabama is headed to Mississippi State.
The second-seeded Crimson Tide and No. 3 Troy play Friday in a regional hosted by Florida State.
The Crimson Tide beat Troy 11-2 in Tuscaloosa on May 8. Alabama didn't make it to a regional last season to end a four-year postseason streak but helped its case with two wins in the Southeastern Conference tournament.
South Alabama plays Mercer in the Starkville regional. It's the Jaguars' first regional bid since 2006.
Sun Belt rival Troy is making its fourth postseason trip since joining the league in 2006.
Auburn failed to make a regional for the third straight year. The Tigers lost to Alabama in the first round of the SEC tournament.
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