Alex de Minaur, the fiancée of fellow tennis star Katie Boulter, cracked a silly joke after her big win in the second round of the Australian Open.

Australian star Alex de Minaur forms one half of a tennis power couple with his partner Katie Boulter. The duo both made it safely through the opening round of the Australian Open, with de Minaur ...

Alex de Minaur, the world No. 8, and Nick Kyrgios, who is back after a two-year battle with knee and wrist injuries, are the ...