SAN LUIS OBISPO, Calif. — Dikymbe Martin scored 17 points, Brandon Rosser added 16 and UC Riverside used a pair of second-half runs to beat Cal Poly 67-56 on Saturday night. The Highlanders (7-13, 5-4 Big West) scored 10 straight to lead 64-53 on Martin’s pair of free throws with 51 seconds left. The Mustangs