World number one Annika Sorenstam stormed to a six-shot lead at the Chick-fil-A Charity Championship.

The Swede has yet to drop a shot in Atlanta and sealed a second-round total of 64 with a five-foot eagle putt at the long 18th to move to 13 under.

Overnight leader England’s Laura Davies dropped 11 shots off the lead but remains the best-placed Briton alongside Becky Morgan on two under.

American Heather Bowie lies in second with Lorie Kane one shot further back.

“I’m very, very pleased with the way I played, especially the back nine of 30,” said Sorenstam.

“But it’s just two days. I’ve got a big lead but someone can still turn it round.

“I’m going to have to keep playing aggressively - the biggest mistake when you are a few in front is to change the game plan.”