Forget making a poster board sign to cheer Serena Williams on at her upcoming tennis tournament; Alexis Ohanian went much, much bigger to support his wife. Page Six reports the Reddit co-founder surprised his tennis star wife on Monday with four billboards along the I-10 in Palm Springs, California. The billboards featured photos of Williams and their baby girl, Alexis Olympian Ohanian, Jr., and read, “Greatest-Momma-of All Time: Serena Williams, G.M.O.A.T.” He addressed the epic gesture on social media Tuesday, writing, “@OlympiaOhanian & I wanted to welcome her back to tennis. Designed them myself, with some help from Jr. #GMOAT.” Williams’ next stop on her post-pregnancy comeback tour is the BNP Paribas Open on March 5 in nearby Indian Wells.Serena Williams’ husband surprises her with billboards of daughter | Page Six: https://pagesix.com/2018/02/27/serena-williams-husband-surprises-her-with-billboards-of-daughter/