This was the first year that the Pac-12 Tournament was hosted at the T-Mobile Arena in Las Vegas.
Members of the UCLA Spirit Squad wait in the hallways prior to tip-off.
Freshman guard Lonzo ball walks through smoke with a hologram of the Pac-12 logo as he is introduced to the game.
Junior center Thomas Welsh won the tipoff against 'SC forward Chimezie Metu under screens that showed the action from a bird's-eye view.
The Trojan bench celebrates as a 3-pointer chips away at the Bruins' lead.
Bryce Alford looks to his right for a teammate to pass to in order to avoid a traveling violation.
Freshman forward T.J. Leaf fires a shot over the head of USC forward Nick Rakocevic.
Trojan associate head coach Tony Bland talks to guard Shaqquan Aaron during the last seconds of a time out.
USC guard Elijah Stewart reaches out to knock the ball out of Leaf's hands after the forward grabbed an offensive rebound.
UCLA coach Steve Alford flashes a grin after a referee's call goes the Bruins' way.
Freshman center Ike Anigbogu attempts a reverse layup as Boatwright and Metu attempt to stop him from scoring.
Ball reaches out for the basketball after a collision with teammate Leaf causes him to lose his grip.
Welsh dunks the ball after a handoff by Leaf.
Sophomore guard Aaron Holiday helps Anigbogu up after the center's protests from the seated position regarding a no call.
USC coach Andy Enfield yells expletives at the referee after a decision is called against the Trojans.
Stewart attempts to guard Ball as the UCLA freshman makes a drive towards the basket.
Junior forward Gyorgy Goloman manages to grab a basket despite opposition from Boatwright.
Senior guard Isaac Hamilton finished the game with a team-high score of 22 points.
Steve Alford addresses his team during a timeout.
Alford protests towards the sidelines after he appeared to be fouled on a layup attempt.