MURFREESBORO — Dobyns-Bennett opens play in the TSSAA Class AAA baseball tournament tonight at 7:30 p.m. against Blackman at Siegel High School. The Siegel pod opens with Brentwood (26-10) taking on Munford (21-16) at 5 p.m. Today’s losers face off Wednesday at 11 a.m. in an elimination game, while the winners meet in a 1:30 p.m.