Serena Williams, David Beckham Attend Royal Wedding

Some of sports' biggest stars were in attendance for the royal wedding between Prince Harry and Meghan Markle on Saturday afternoon. 

Serena Williams, who is friends with Markle, posted several photos alongside husband Alexis Ohanian before the ceremony got underway at St George's Chapel at Windsor Castle in England. 

According to Us Weekly's Erin Crabtree, Markle has referred to the 23-time Grand Slam champion as her "closest friend." 

David and Victoria Beckham were also on hand for the royal nuptials: 

The couple was also in attendance for the 2011 wedding between Prince William and Kate Middleton.