The father of two sets of twins, Roger Federer loves kids.
It seems kids—even babies—love Federer, too.
Australian Open: Photo Gallery Day 2
Former world No. 1 Victoria Azarenka shared this image of her baby son, Leo, watching Federer's Australian Open second-round match against Noah Rubin.
"Hey Roger Federer... Leo learning from the best," Azarenka wrote.
Photo credit: Mark Peterson/Corleve