UCLA (3-5, 1-4 Pac-12) at No. 21 Colorado (6-2, 4-1, No. 15 CFP), Thursday, 9 p.m. (FS1)

Line: Colorado by 11½.

Series Record: UCLA leads 9-2

WHAT'S AT STAKE

A firm grasp of the Pac-12 South lead for Colorado. The Buffaloes would own a one-game lead over USC and Utah, which lost to No. 4 Washington last weekend. The Bruins are 5-0 against Colorado since the Buffaloes joined the league in 2011. With four games remaining, the Bruins have plenty of work to do to become bowl eligible.

KEY MATCHUP

UCLA DE Takkarist McKinley against Colorado RB Phillip Lindsay. McKinley leads the nation in tackles for loss per game, including five against Utah. Lindsay is nicknamed the "Tasmanian Devil" for his ferociousness. He leads Colorado in yards rushing (745), scoring (60 points) and all-purpose yards (998).

PLAYERS TO WATCH

UCLA: LB Jayon Brown tops the conference in solo tackles per game. Had 18 tackles against Colorado last season.

Colorado: Offensive line of Jeromy Irwin, Gerrad Kough, Alex Kelley, Tim Lynott Jr. and Sam Kronshage. They've combined for 43 1-2 knockdown blocks this season and only allowed their QBs — Sefo Liufau and Steven Montez — to be pressured 19 times.

FACTS & FIGURES

UCLA's Mike Fafaul likely will start at QB given Josh Rosen's shoulder injury. ... All five of UCLA's losses this season have been by nine points or less. What's more, the Bruins had the ball on the final possession with a chance to tie or take the lead, including the game against Stanford when Rosen's fumble was returned for a TD on final play to make it 22-13. ... Bruins are 13-9 against ranked teams under coach Jim Mora. They're 0-2 this season. ... Colorado is 6-2 for the first time since 2005. The team started 7-2 that season under coach Gary Barnett, who's now a radio analyst for Colorado games. ... Colorado is 31-20-2 in Thursday contests in school history. ...Team is averaging 44,977 spectators in three home games. Last time Colorado averaged more than 40,000 for a full season was 2012 (45,373). ... The Buffs are 19th in the nation in total offense (495.8) and 12th in total defense (307.8).