Us Weekly reported that the billboards have images of 5-month-old Alexis Olympia Ohanian Jr. and her mother with the words "Greatest Momma of All Time." The last billboard forms the acronym G.M.O.A.T.
Williams, who is competing in the 2018 BNP Paribas Open in March, saw the billboards as she traveled to Indian Wells, California, on Monday, according to Us Weekly. From Feb. 10-11, she competed with sister Venus Williams at a doubles match in Nashville, North Carolina, at the Fed Cup. Little Alexis and Ohanian were photographed looking on during the first round. The Williams sisters lost to Lesley Kerkhove and Demi Schuurs.
Loss aside, Serena Williams spoke to reporters after the match about motherhood, saying it's "been the most fun of my life."
“It’s a totally new experience,” Serena Williams said. “I love motherhood and I look forward to just being the best mom I can be.”