Johannesburg: World number one Serena Williams has admitted that completing the calendar Grand Slam will be a priority for her next year, but said that she is not going to put any extra pressure on it.


Serena Williams. Pic/AFP

The American tennis prodigy saw her dreams of completing a calendar grand slam crushed when Italy's Roberta Vinci claimed a 2-6, 6-4, 6-4 win over Serena in the US Open semifinals at the Flushing Meadows in September.