Sophomore Derrick Williams had 26 points and 11 rebounds - and a likely game-saving block with one second left - to lead No. 13 Arizona to its eighth straight victory, 87-86 over Washington on Saturday.

Williams rejected Darnell Gant's short shot in the lane after Solomon Hill’s layup with 22 seconds left was the final basket in the hard-fought back-and-forth battle.

Sophomore Lamont Jones scored 15 points, and Kevin Parrom and Jesse Perry had 11 apiece for the Wildcats (23-4, 12-2 Pac-10), who lead UCLA by 1 1/2 games. UCLA, which plays at California on Sunday, hosts Arizona on Feb. 26.

Matthew Bryan-Amaning had 24 points and nine rebounds, and Isaiah Thomas added 12 points and nine assists for Washington (18-8, 10-5 Pac-10), which had its three-game winning streak snapped and fell out of Pac-10 title contention.