Eugenie Bouchard thrashes Serena Williams at Hopman Cup

Eugenie Bouchard

Canada's Eugenie Bouchard dropped just three games in a stunning win over world number one Serena Williams at the Hopman Cup in Perth.

Bouchard, the world number six, won 6-2 6-1 in 50 minutes to give Canada an early lead over the United States in the mixed team event.

Having required an on-court espresso to get her going in her opening match on Monday, Williams again looked sluggish.

"I don't know what's wrong with me, I'm so tired," said the 33-year-old.

"It's weird. I can't get my body to move. I feel like I've got no energy. It's a little frustrating because I know I can play two thousand times better.

"I've been trying to rest up. I did a little gym work, but I just felt depleted. I don't know why. I don't know how to describe it.

"I've just got to get my feet moving. I have to figure it out. Hopefully I can do better in the next match."

The American will play Lucie Safarova of the Czech Republic in her next singles match on Thursday.

Bouchard enjoyed her first-ever win against Williams, and joked afterwards: "Maybe she needed another coffee.

Maria Sharapova
Maria Sharapova and the Brisbane crowd enjoyed her opening match of the 2015 season

"I know she didn't play her best. I'm happy I just stayed with it and held my nerve. It's a good way to start the year - it gives me some confidence."

Vasek Pospisil later beat John Isner 6-3 7-6 (7-4) to give Canada an unassailable 2-0 lead over the US, before Williams and Isner took the mixed doubles 6-3 7-5.

World number two Maria Sharapova began her 2015 campaign with a crushing 6-0 6-1 win over Kazakhstan's Yaroslava Shvedova in Brisbane.

"It certainly felt good to start, after not playing a match for a couple of months," said the 27-year-old Russian.

"Despite all the training, it's such a different feeling to go out on the court and play in front of a crowd."

Eugenie Bouchard and Vasek Pospisil of Canada congratulate John Isner and Serena Williams of the United States
Williams and Isner beat Bouchard and Pospisil in the mixed doubles but still lost the tie