Clijsters loses to Azarenka at Key Biscayne

Victoria Azarenka has advanced to her first semifinal this year

by beating two-time champion Kim Clijsters 6-3, 6-3 at the Sony

Ericsson Open.

Clijsters, who has been nursing a right shoulder injury since

she won the Australian Open in January, had eight double-faults

Wednesday night and held only three times in nine service

games.

Azarenka, seeded eighth, earned the biggest victory of her

career when she won Key Biscayne in 2009. Her opponent Thursday

will be No. 3-seeded Vera Zvonareva, who beat No. 9 Agnieszka

Radwanska 7-5, 6-3.