Carlos Alcaraz swatted aside Serbian Dusan Lajovic 6-0, 7-6(5) to keep his title defence on track at the Miami Open on Sunday, as Canadian Bianca Andreescu cruised past American Sofia Kenin in straight sets.

Spain’s teen phenomenon won Indian Wells to retake the top ranking last week and kept the momentum going at Hard Rock Stadium as he fired off 26 winners to set up a fourth-round meeting with Australian Open semi-finalist Tommy Paul.

“I always think that you have to go for it,” he told the Tennis Channel after the match. “That’s what I told myself in (those) tough moments.”

Lajovic stunned three-time grand slam winner Andy Murray in the first round but never hit his stride on Sunday, letting his only break-point chance slip through his fingers in the first set as the US Open winner put on a near-flawless performance.

Botic van de Zandschulp of the Netherlands stunned third seed Casper Ruud 3-6, 6-4, 6-4.

Andreescu advances

Former US Open champion Andreescu harnessed her mighty serve to topple Kenin 6-4, 6-4, sending over seven aces as the 2020 Australian Open winner failed to mount much of a defence. Australian Open champion Aryna Sabalenka defeated Marie Bouzkova 6-1, 6-2.