Go ahead and add another title to Serena Williams' collection: Mom.
The tennis star announced via social media on Wednesday that she gave birth to a girl named Alexis Olympia Ohanian Jr.
Williams posted about her baby on Instagram and Twitter accounts and is heard saying in a video, "We had a lot of complications, but look what we've got."
The 35-year-old Williams said in late December that she was engaged to Reddit co-founder Alexis Ohanian.
Williams wrote Wednesday that their daughter was born on Sept. 1 and weighed 6 pounds, 14 ounces. One posting also says about the newborn, "Grand Slam Titles: 1."
Williams won her 23rd Grand Slam...