Serena Williams needed less than an hour to win the Miami Open. Reuters

Serena Williams needed just 56 minutes to dispose of Spain's Carla Suarez Navarro on Saturday to capture her eighth Miami Open title, 6-2 6-0.

The world No. 1 hit 27 winners and seven aces as she cruised to a victory over No. 12 Navarro. There had been questions surrounding Williams, who had to pull out of Indian Wells before her semifinal match due to a knee injury. The American showed little problems in South Florida.

"It feels really good to have eight under my belt. I can't say I thought I would win eight, especially in the beginning of the week," Williams told reporters.

In six matches at Key Biscayne, Williams conceded just two sets, as only Sabine Lisicki and Simona Halep gave the American a real test.

Still looming for the 19-time Grand Slam winner is the French Open, which begins in 44 days. It has been the major that given Williams the most trouble, winning just two titles at Roland Garros.