That episode has left her with what she described as "the worst mom brain" but when it comes to playing tennis she is not one to forget her lines.
To kick off day two in Dublin, Markle wore a chic taupe green dress by French designer Roland Mouret.
Serena had initially been coy about whether Meghan would be attending the game, but when press confirmed she would be there, she added with a smile: 'There you go.
The Duke and Duchess of Sussex tied the nuptial knot on May 19, but rumours about Markle's pregnancy have been doing rounds even before their marriage.
The Duchess of Sussex played a lead role on the series for seven seasons, but was written out of the show after choosing to focus on her royal duties, following her engagement to the 33-year-old Prince. Just this week, Meghan and Prince Harry travelled to Northern Ireland to meet some of the country's highest-ranking politicians, however, the most important interaction they had during their visit was with Walter Cullen - an adorable three-year-old, who was just smitten with Meghan Markle.More news: Safdar surrendered like a lion: Maryam Nawaz
And on Wednesday, during her visit to Dublin, one of HELLO!'s readers spotted before anyone else that Meghan had in fact chose to wear the same design - only in a different colour.
Today's announcement from Kensington Palace has royal fans buzzing with excitement with confirmation the two Duchesses will attend this year's event together.
Getty Images The Duchess of Sussex at Croke Park. Markle wore the ensemble with nude heels and a matching black fascinator for programming to honor the 100th anniversary of the Royal Air Force. The suit, Daily Mail estimated, is worth about $3,300. She later changed into a black trouser suit. Get HELLO! Canada, PEOPLE, Vanity Fair and over 100 more of the world's best magazines for one low monthly price at Texture by Next Issue. "I'd argue that's worth every penny", she told Entertainment Tonight.