Tennis pros Alex de Minaur and Katie Boulter are engaged! Boulter, 28, announced the news via Instagram on Monday. “We’ve been keeping a small secret … ,” she captioned a photo of her and de Minaur, 25,

Australian tennis star Alex de Minaur has been making waves on the court with his agility, speed, and tenacity. However, off the court, the 25-year-old has been quietly nurturing a relationship with fellow tennis pro,

"We’ve been keeping a small secret…" the top-ranked British single's player wrote in her engagement announcement