Never one content to sit still, the LPGA legend announced the birth of William Nicholas McGee via her Twitter account:
"SURPRISE! I went into labor today & William Nicholas McGee was born at 6:33 PM. I'm well. Will is hanging in there fine for being 27 weeks."
The child is the second for Annika and husband Mike McGee. They also have a daughter, Ava, who was born some three weeks early. Sorenstam retired at the end of 2008 season with 72 career wins.
GolfDigest.com has a comprehensive archive of Annika's career highlights and instruction features.
UPDATE: Sorenstam has explained the early birth, which was caused by a "placenta abruption."
-- Sam Weinman