Kate Middleton is famously an avid fan of tennis, and she was there all through And Murray’s heart-breaking Wimbledon final, where he was eventually defeated by Roger Federer.
So it must have been a welcome change for her to witness a victory for the Scottish tennis player today.
Andy Murray scored a victory in the Olympic men's singles quarter finals against Nicolas Almagro of Spain.
The Duchess of Cambridge and her husband, Prince William, looked elated with the win, rising to their feet and applauding, and even joined the rest of the crowd in a Mexican wave.
The win means that Andy Murray will face either Novak Djokovic or Jo-Wilfried Tsonga in the semi-finals, so a medal finish could definitely be within his grasp.