Brad Keselowski overcomes a few late race challenges to win the Boyd Gaming 300 at Las Vegas Motor Speedway.
Race winner Team Penske among teams penalized for infractions
Dale Earnhardt Jr. sends praise Elliott's way; No. 9 left front comes in too low post-race
Sadler heads to Las Vegas third in the standings
Former series champ holds off Kyle Busch's charge in Sin City
Sanctioning body has concerns with shock for winning car, low fifth-place car