2 Jan 2013

Serena storms into quarters in Brisbane, Sharapova withdraws

11:32 am on 2 January 2013

The 15-time grand slam winner Serena Williams has stormed into the quarter-finals of the Brisbane International tennis tournament.

Williams produced her 33rd singles win in 34 matches since the start of June by defeating Frenchwoman Alize Cornet 6-2,6-2 in 60 minutes.

Meanwhile the world number two Maria Sharapova has withdrawn from the tournament due to a collarbone injury.

The French Open champion also pulled out of an exhibition match against Caroline Wozniacki last month in Seoul because of a sore collarbone.