San Diego State, winner of 21 of its last 24 baseball games and ranked No. 13 in the nation, begins play against No. 15 Arizona at 2 p.m. (PDT) today in the NCAA Central Regional in Austin, Tex.
The winner of the six-team double-elimination tournament, which ends Sunday, will gain a spot in the College World Series, which begins next week in Omaha, Neb.
In other first-round games today, No. 20 Pepperdine (35-19) will play Pan American (41-17) at noon, and No. 4 Texas (49-12) will play Southern Illinois (39-20) at 7:30.
The Aztecs (42-21), who have never qualified for the College World Series, will play an Arizona team that finished second in the Pacific 10 Southern Division and finished 41-18 overall. Arizona won the national championship in 1980.