Access Online reports Serena Williams cried after learning her daughter took her first steps.
Unfortunately, she cried because it happened while she was training for Wimbledon.
Williams tweeted, "She took her first steps... I was training and missed it. I cried."
A few fans sent Williams positive thoughts.
"I'm a housewife and was in the next room and I missed it. With both of the twins. Please don't feel bad. Be happy for her and be ready for the running after her." Wonder Mom