The British professional tennis player and his wife fittingly met at the 2005 U.S. Open and tied the knot a decade later. A month after their wedding in 2015, Murray defeated Rafael Nadal in the Madrid Open and subsequently revealed the secret behind his success when he wrote on a TV camera, “Marriage Works!”

When asked by The New York Times if marriage made him feel different as he went about his tennis, the two-time Wimbledon champion replied, “I think getting married is a progression. It’s a step forward in your life away from the court. But I still need to work hard; I still need to put the work in.”

“Getting married is great, and I feel really good away from the court, and my private life and stuff is good. But you still need to train and work hard. Like, I didn’t go on a honeymoon after we got married; I went to Barcelona and trained for 10 days to get ready for the clay-court season,” Murray continued. “It’s been good, but you still have to put the work in.”