The famous royal-in-law wore an effortlessly stylish blue and white shirt dress, which concealed her growing baby bump. Pippa accessorised her casual day look with round Ray-Ban sunglasses ($199; theiconic.com.au) and black structured crossbody bag.
This isn't the first time Pippa has attended Wimbledon this year, last week, the 34-year-old was perfectly dressed for the warm English weather in a white broderie anglaise frock and sensible blue espadrilles.
Pippa, who wed financier James Matthews in May 2017, is reportedly five months pregnant according to U.K tabloid, The Sun. She has only stepped out a handful of times since her pregnancy was unofficially announced on April 22nd.
Middleton was accompanied by her younger brother James at the tennis, who looked dapper in a navy blazer, white shirt and blue tie.