Meet Serena Williams` new born daughter

serena baby.jpg

Tennis star Serena Williams and fiance Alexis Ohanian have officially introduced their daughter, Alexis Olympia Ohanian Jr.

Williams, 35, took to her Instagram page to share a photo of the baby, who was born Sept. 1, as well as videos from various stages in her pregnancy.

The 6-pound, 14-ounce newborn, who has an Instagram handle of her own (@olympiaohanian), left the hospital after nearly a week, according to her mother, who said in the footage, which was also posted to Ohanian's YouTube channel, "we had a lot of complications."

"Welcome, Alexis Olympia Ohanian, Jr., we're so happy to meet you," Ohanian, 34, wrote today in an Instagram caption. "Our little girl is already mama's perfect sidekick."