LAS VEGAS (KLAS) — Tyrell Roberts broke free for instant, took a short pass from teammate Khalil Shabazz and sank a 3-pointer with 6.8 seconds left as San Francisco knocked UNLV from college basketball’s unbeaten ranks with a 75-73 victory on Saturday at the Thomas & Mack Center.

The loss was the Rebels’ first after 10 straight victories. San Francisco, which lost a 67-64 heartbreaker to unbeaten New Mexico on Monday, is 9-3.

UNLV led 46-37 at halftime before an announced crowd of 6,446, but the Dons closed the game with an 11-0 spurt, including two 3 pointers from Roberts and one from Shabazz.

Zane Meeks’ layup with 57 seconds left pulled San Francisco to within 73-72, and the Rebels then missed two shots, a jumper by EJ Harkless with 39 seconds left, setting the stage for Roberts’ winner, and a 3-point try by Keshon Gilbert with two seconds remaining.

Roberts’ decisive shot just cleared the outstretched arm of Gilbert, who rotated from just inside the paint to defend.

“Obviously, a tough one,” Rebels coach Kevin Kruger said. “It felt like we played a pretty good game overall, just that stretch at the end ended up costing us.”

UNLV led by as many as 11 in the second half, but the Dons saved their best for the end.

“There is a lot to take from it,” Kruger said. “We will recalibrate on Monday, get back to it and tighten some things up going into the Southern Mississippi game on Thursday.”

Subpar second-half seemed to be among UNLV’s biggest flaw. The Rebels shot 29-for-63 overall (45%) but just 13-for-32 in the second half (40.6%). San Francisco was 28-for-65 overall (43.1%) but hit on 15 of 31 (48.4%) after intermission, including 6-for-17 from 3-point range.

Roberts, Shabazz and Meeks each had 17 points for the Dons. Meeks, who was 8-for-10 shooting, also had 17 rebounds.

Harkless had a game-high 21 points and Luis Rodriguez added 17 for UNLV.