Senior Marisa Datko and junior Bryanna Datko have played together since they were kids in a competitive house.
Due to anticipated bad weather later in the day on Saturday, Game 1 of the doubleheader has been moved up to an 11 a.m. start.
The Mavericks run-ruled Southern 16-0 in a midweek game on Thursday.
The Mavs' pitching staffed blanked Ranger in the 10-inning scrimmage, striking out five.
Marissa Datko earned her second selection as an All-America Scholar-Athlete.
AS A SOPHOMORE (2016): Appeared in 3 games ... Recorded 6 putouts.
AS A FRESHMAN (2015): Appeared in 6 games ... Hit .286 with 2 hits in 7 at bats ... 2014-15 NFCA All-American Scholar Athlete.
SCRIPPS RANCH HS: Named 2013 Second Team Eastern League ... Named 2012 First Team Eastern League ... 2012 Scripps Ranch Defensive Player of the Year ... Won Eastern League Champions 2011 and 2013 ... ASA 12U Western National Champions 2009 with San Diego Mystic.
PERSONAL: Business major ... Daughter of Keith and Rita Datko.
SB: Mavs feature 11 NFCA Scholar-Athletes
SB: Defense shows improvement on Saturday
SB: For Mendoza's, it's all about family
SB: Mavs garner 4th-straight NFCA All-Academic honor
SB: Offense shines in fall opener
SB: Pitching staff ready for fall opener