"To see your career from the beginning to today was an honor," Williams wrote in a social media post saluting her fellow all-time great.

The Italian was pictured on a snowy getaway as he joined fellow brand ambassador Kendall Jenner in becoming the face of this year's Gucci holiday campaign.

The American’s girlfriend shared her first experience at a Kansas City football game—including a skybox meeting with the pop megastar and tight end Travis Kelce.