Playing at Wimbledon comes at a price when you’re a new mother.

Serena Williams says she missed her daughter Olympia’s first steps while she was practicing at the All England Club on Saturday.

Williams tweeted : “She took her first steps… I was training and missed it. I cried.”

Williams became a mother in September and missed last year’s Wimbledon because of her pregnancy. She’s back looking for her eighth title at the tournament and reached the fourth round on Friday.

She has brought Olympia with her, and a photo on the baby’s Instagram account last week showed her sitting on one of the grass courts.