Jannik Sinner clinched his second consecutive ... As a brand ambassador for Gucci, Sinner donned a classic black polo monogrammed with the luxury brand's logo, which he paired with off-white ...

Jannik Sinner ... sportswear brand On. Sinner faces Holger Rune in the fourth round of the Australian Open at 10:00 p.m. EST tonight. Fans can expect to see him wear his Snoopy-ish night outfit.

Jannik Sinner has added to his prize money earnings through deals with brands such as Gucci The former junior skier has also cashed in on his success off the court, with a modelling contract with ...