No. 1 LSU

LOCATION: Baton Rouge.

RECORD: 52-9.

COACH: Paul Mainieri, 310-131-2 in seven seasons.

NCAA BID: Automatic (won the SEC tournament).

NCAA APPEARANCE (LAST TIME): 26th (2012).

NCAA RECORD: 127-49 with six national titles.

RANKINGS: No. 1 NCBWA, No. 1 Collegiate Baseball, No. 1 USA Today.

WHAT TO KNOW: LSU, the No. 4 national seed, has not made the College World Series since winning the 2009 national title. The Tigers lost in the super regionals last year. .. The Tigers set school records this season with 48 wins in the regular season and w23 wins in SEC play. ... LSU has not played Jackson State or Sam Houston this season. However, the Tigers were an 11-2 winner at ULL the first month of the season. ... LSU has five players who were named to the All-SEC first team. Aaron Nola was named the Pitcher of the Year and shortstop Alex Bregman the Freshman of the Year.

No. 2 Louisiana-Lafayette

LOCATION: Lafayette.

RECORD: 41-18.

COACH: Tony Robichaux, 672-457-1 in 19 seasons.

NCAA BID: At-large from the Sun Belt Conference.

NCAA APPEARANCE (LAST TIME): 13th (2010).

NCAA RECORD: 20-25.

RANKINGS: Unranked.

WHAT TO KNOW: ULL is one of four teams from the Sun Belt in the field of 64. The Cajuns lost to Florida Atlantic 16-8 in the championship game of the conference tournament. ... ULL leads the nation with 72 home runs. ... Leadoff hitter Dex Kjerstad, who went 11-for-16 in the Sun Belt tournament, needs seven more hits to match the school record of 101 set by Nathan Nelson in 2000. ... ULL has won its regional opener in each of its two most recent postseason appearances. ... The Cajuns have already achieved an 18-win turnaround from last year, when they finished 23-30 and missed the Sun Belt tournament.

No. 3 Sam Houston State

LOCATION: Huntsville, Texas.

RECORD: 37-20.

COACH: David Pierce, 77-42 in two seasons.

NCAA BID: At-large from the Southland Conference.

NCAA APPEARANCE (LAST TIME): 8th (2012).

NCAA RECORD: 7-14.

RANKINGS: Unranked.

WHAT TO KNOW: Sam Houston went 1-2 in the Southland Conference tournament, but earned an at-large bid on the strength of winning the regular-season title with a 20-7 mark in SLC play. ... Sam Houston returns to the postseason as an at-large selection for the second consecutive season. The Bearkats went 2-2 in the Rice regional last year, losing to Arkansas in the championship round. ... During the regular season, Sam Houston beat Rice twice, won its only game with Texas and split two games with both Houston and Texas A&M.

No. 4 Jackson State

LOCATION: Jackson, Miss.

RECORD: 34-20.

COACH: Omar Johnson, 237-146 in seven seasons.

NCAA BID: Automatic (won the Southwestern Athletic Conference tournament).

NCAA APPEARANCE (LAST TIME): 5th (2000).

NCAA RECORD: 0-8.

RANKINGS: Unranked.

WHAT TO KNOW: Jackson State earned its first NCAA berth in 13 years by beating Prairie View 6-2 in the SWAC title game. The Tigers went 19-5 to win the SWAC Eastern Division in the regular season. ... Six players from JSU were named All-SWAC. LSU-Eunice transfer Charles Tillery was named the Newcomer of the Year. ... In a 19-0 win over Rust College on March 26, Chris Wingard and Theo Hassan combined for the first no-hitter by JSU under Johnson.