Duchess of Cambridge makes surprise appearance at special event

Or Andre Nathaniel-George, an 18-year-old from Harrow, who is now working as a tennis coach for the London school sports charity Greenhouse. For the day on the pitch, Kate wore a blue Philosophy Di Lorenzo Serafini pea coat with black jeans and booties.

She was an unannounced addition to the event alongside the royal brothers as they saluted 150 apprentices who've graduated from the royals' own mentoring programme.

The tennis coach said: "To have the backing of the Princes and the Duchess is wonderful and a huge inspiration for all the young people". She was not giving much away though, with the double breasted blazer, with gold button detail, sitting loosely over her belly, over top of a black polo neck top, and her black fitted trousers making her look as trim as usual.

Kate is glowing during her third pregnancy, with today's engagement coming just days after she danced with Paddington Bear at an event for the Paddington 2 movie.

"We were talking about the new stadium, football and what West Ham coming to the stadium has done for the area".

Designed by The Royal Foundation of The Duke and Duchess of Cambridge and Prince Harry, the program aims to improve the availability and quality of sports coaching and boost the confidence of 16-24 year olds with limited opportunities.

"For me, getting kids doing sport instead of sitting in front of computers is great".

On Tuesday, Kensington Palace announced that the royal couple expect their third child in April.

The royal's OB-GYN, Alan Farthing, who delivered both Prince George and Princess Charlotte, has reportedly been asked to handle the baby's birth.

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