Rafael Nadal sealed his place in the quarter-finals at Indian Wells after beating Reilly Opelka in straight sets to claim his 18th straight win.
Spain's Nadal won both sets by tie-break 7-6 (7-3) 7-6 (7-5) as the big-serving American Opelka held his own.
Opelka served nine aces to Nadal's six but the 21-time Grand Slam winner used all of his experience to advance.
Nadal will now face Australia's Nick Kyrgios, who received a walkover after Jannik Sinner withdrew through illness.
More to follow.