Image copyright Instagram/@serenawilliams Image caption Serena Williams posted the first picture of baby Alexis on Wednesday

Tennis star Serena Williams has posted the first photo of her daughter Alexis Olympia Ohanian Jr on social media, almost two weeks after her birth.

Williams and her fiancé Alexis Ohanian, the Reddit co-founder, welcomed their little girl on 1 September at a clinic in Florida.

The 23-time Grand Slam winner shared a video clip on her Instagram Stories, Facebook and website.

Williams announced the name of her baby daughter on her Instagram Stories profile. She also shared a montage of memorable moments from her pregnancy, including winning the Australian Open while pregnant and her first ultrasound.

Image copyright Getty Images Image caption Serena Williams and her fiancé used social media to welcome their daughter to the world

Her Instagram post has attracted more than 270,000 likes within an hour of posting and her tweet was retweeted more than 1,300 times (at time of writing).

Image copyright AFP/Getty Images Image caption Serena Williams won the 2017 Australian Open without dropping a set

Earlier this year, Williams won her 23rd grand slam tournament at the Australian Open while pregnant.

According to her coach, she hopes to return to court in time for next year's Australian Open.

In December 2016, Williams used the social platform Reddit to announce that she is engaged to its co-founder, Mr Ohanian.

Written by Paul Harrison, UGC and Social news team