Maria Sharapova is sharing a special piece of her heart with her son.

The retired tennis star, 37, shared a series of photos on her Instagram on Sunday, June 30, showing a few scenes from her recent trip to Wimbledon in London. In the sweet photos, the proud mom showed off the stadium to her 23-month-old son Theodore, holding his hand as they posed courtside.

Sharapova could also be seen showing her toddler son her name on the wall of champions and posed with fiancé Alexander Gilkes for an adorable family photo.

“My heart is full 🤍🍃,” Sharapova wrote in the caption.

In June, Sharapova spoke with PEOPLE about how tennis helped her understand the power of a schedule ahead of welcoming her son.

“I think in some ways there were so many elements of my sport that I could I apply into motherhood,” she told PEOPLE.

“Just the discipline of the schedules and routines and seeing the benefit of that through their behavior and through their eyes has also been really helpful. When I was playing, knowing where I was going to be and when I was going to nap and when I was going to eat helped me so much with my energy.”

“We try our best!” she said, noting that she and her husband travel a lot and have found routines helpful, but sometimes it just doesn’t happen.

“He’s constantly evolving into new phases, so I feel like just when you’ve settled into a certain routine, it can go out the window,” she said. “So you’re constantly adjusting to new circumstances, new developmental stages. You just have to acknowledge it changes all the time.”

“Every single week you learn something new about them, about their personality,” she shared. “Although it’s a full-time job, it’s also just so gratifying to see this little human grow and to express himself and to share your moments with him when he’s awake. It’s all very special.”

She was also candid about how difficult her breastfeeding experience had been. “You really don’t know much about what you’re doing and then you just figure it out. And then, in the end, it’s all okay.”

“I think it’s more of the scheduling that’s tricky. It’s so many times a day,” added Sharapova.