From mom to mom, Serena Williams is incredibly sure that her friend Meghan Markle will be a fabulous parent.

Recently, the tennis champion gushed about how she thinks Meghan will handle the transition to motherhood: “She’ll be the best mom, for sure,” she told E! News.

As far as any tips she might offer, Serena didn’t hold back.

“Accept mistakes and don’t expect to be perfect,” she said. “We put so much pressure on ourselves. My friend is pregnant, and she was like, ‘My kid’s gonna do this,’ [and] I just looked at her like, ‘No, she’s not.’ … She was like, ‘I need to talk to you about tips,’ because, yes, I had all of those high expectations.”

She added, “Everything is not going to go as planned. You just got to go with the flow.”

We agree!