The former No. 1’s new arm, knee and leg sleeves aim to promote healing through infrared and semiconductor-infused fabric.

The 2018 champion made her first appearance since withdrawing at the Australian Open.

The Brit has left Nike, her apparel sponsor since the age of 15, to become the first female tennis player sponsored by the Japanese brand.

The chair umpire delayed the start of his match against Rinky Hijikata after Tiafoe’s shirt violated ATP logo rules.

The top seed recalled the viral US Open moment as he powered into the Nexo Dallas Open quarterfinals.

The Italian channeled his skiing past with bespoke Nike apparel unveiled during the Milan-Cortina Games.

The International Tennis Hall of Famer is reportedly getting a new sneaker in celebration of one of his most iconic 'fits.

Approved on tour but barred at Slams, the health tracker controversy exposes the sport’s complicated rulebook.

Jellyfish-inspired layers, luxury price tags, and meme-worthy kits lit up Melbourne.

Two world No. 1s were asked to ditch their WHOOP fitness trackers before taking the court in Melbourne.

Sabalenka has signed on as SoHo-based jeweler Material Good's first-ever brand ambassador, and has also joined the Gucci family.