Yeager made 11 of 17 shots from the field, including 6 of 11 from 3-point range, for the Titans (12-11, 5-6 Big West), who shot 65.4 percent (17 for 26) in the second half to overcome a 40-29 deficit at the break.
Kwame Vaughn had 13 points for Cal State Fullerton.
Chris Patton scored 36 points on 14 of 16 shooting for the Highlanders (5-18, 2-9).
The Titans made 8 of 14 3-point attempts in the second half. Yeager's shot from behind the arc gave Cal State Fullerton the lead for good, with 9:20 remaining.
As the Sooners look to life without superstar Buddy Hield and his sidekicks, it's clear their unseasoned players will need to grow up fast.
The Central Intercollegiate Athletic Association says it won't move its headquarters, its basketball tournament or other conference championships from North Carolina, despite
After a season that saw his shooting numbers slip, should Nigel Hayes return for his senior year at Wisconsin or take the gamble to put him name in this year's NBA draft?