Fine line between pleasure and pain

Ruthless Sharapova serves up US Open lesson to old friend Kirilenko

Maria Sharapova found no room for sentiment on Monday as she gave her old friend Maria Kirilenko a tennis lesson and rolled to a 6-4, 6-0 win and into the second round of the US Open.

Returning to Arthur Ashe Stadium for the first time in two years after she missed last year's tournament through injury, a ruthless Sharapova made it crystal clear she was not going to let friendship stand in her way of a second title at Flushing Meadows.