What is your take on another option on the best-of-five Grand Slam matches for men: best three out of four sets and if the match is tied 2–2 then use the 10-point tiebreaker. Same ending as if it's five sets without having to play a fifth set.

In the deciding set of the Australian Open finals on January 25, Illinois-born, Florida-raised Madison Keys, the 19th ranked player, steeled herself against her opponent, Aryna Sabalenka of Belarus, the formidable No.

Madison Keys says she kept telling herself to be brave down the stretch of a tight third set in the Australian Open final against two-time defending champion Aryna Sabalenka.