Serena Williams
Williams is unbeaten in 2015 and dispatched of Navarro in confident fashion. Getty Images

Serena Williams easily brushed aside the challenge of Carla Suárez Navarro to secure victory in the 2015 Miami Open at Crandon Park.

World number one Williams, who dropped just two sets against Sabine Lisicki and Simona Halep en route to the final, utterly dominated her Spanish opponent after an early wobble, recording a 6-2, 6-0 victory in under 60 minutes.

This was the eighth time that the American has won the tournament in Miami and her winning streak overall now stands at a daunting 21 matches.

The only slight blemish on her otherwise outstanding record in 2015 came after she was forced to pull out of a semi-final meeting with Halep at Indian Wells last month, due to a recurring knee injury.

"Congratulations to Carla. She's had a fabulous two weeks," Williams was quoted as saying by the Women's Tennis Assocation during the trophy presentation.

"This is just the beginning. I'm really proud of you – we always get along and it's always great to see you do well, so congratulations."

"I would love to dedicate this to my dad. He's not here. I miss him. I hope he's watching. I love you daddy – this one's for you."

Having already won the Australian Open this year, few would bet against Williams reigning supreme at Wimbledon once again this summer.

But before that, there is the small matter of the clay court season and the French Open in May.

The 33-year-old has only won twice at Roland Garros during the course of her illustrious career, the last such triumph coming in 2013 as Williams saw off a familiar foe in Maria Sharapova in straight sets.

In the men's draw in Miami, meanwhile, Andy Murray will be aiming to topple Novak Djokovic and record a first victory in seven meetings against his old rival.

Murray booked his place in the final after beating Tomas Berdych 6-4, 6-4 on 3 April.