Trouble is brewing for the Muno family on Tuesday in Santa Barbara.
JJ Muno, a former Sherman Oaks Notre Dame baseball player who's batting .333 for UC Santa Barbara, faces UCLA.
UCLA is home to his sister, volleyball standout Zano Muno, whose boyfriend is UCLA catcher Jake Hirabayashi.
"Blood is thicker than water," father Larry Muno said. "We want to see Jake go four for four and lose."
No word yet on who Zana will be rooting for.