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Duchess Kate rocks sporty look for visit to National Tennis Center

Marah Alindogan, AOL.com

Duchess Kate is a sporty royal!

The 35-year-old ditched her usual fitted dresses and stilettos for a more casual look on Tuesday as she visited the National Tennis Center in London. The occasion marks her first solo engagement since announcing in early September that she's pregnant with baby No. 3.

Kate looked absolutely chic in a pair of $375 track pants by Monreal London, a brand popular with soccer players such as Cristiano Ronaldo and Rio Ferdinand, a black jacket and a pair of Nike Air Max sneakers. She kept her makeup light, with only a hint of blush on her cheeks, and styled her freshly cut brunette tresses in a low ponytail. 

Adorable photos show the Duchess of Cambridge getting active with England's best and brightest young tennis players. She participated in a couple of drills with the young players, and she even exchanged high-fives in an adorable moment captured by photographers. 

Kate, an avid tennis player herself, looked in tip-top shape following a severe bout with hyperemesis gravidarum -- a severe form of morning sickness that kept her out of the spotlight for nearly two months. 

RELATED: Kate Middleton at Wimbledon:

She debuted her baby bump in early October for an event to celebrate World Mental Health Day. The 35-year-old royal showed off her baby bump in a powder blue lace frock from London brand Temperley that hit just below her knees. She matched the look with a pair of black pumps and diamond drop earrings worth $3,852 from her go-to designer Kiki McDonough.

Get Kate's stylish Nike sneakers:

Kensington Palace recently announced that Kate and husband Prince William are expecting baby No. 3 in April 2018. Royal fans are crossing their fingers for an April 29th arrival date to help Kate and William celebrate their anniversary.

For more on Kate's pregnancy, watch the video above. 

RELATED: Kate at sister Pippa Middleton's wedding: