Madison Keys is out of the ATX Open in Austin because a WTA rule is preventing her from competing in the tournament. When the entry list for the WTA 250 tournament in Austin was released, the American tennis star's name was on it.

Keys, who rose to world No. 7 after winning her first Grand Slam title, had entered the WTA 250-level ATX Open in Austin, Tex., which begins February 24. The American entered the tournament as world No. 21, with fellow American Jessica Pegula entering as world No. 6.

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.

Madison Keys will not be able to compete at next month's ATX Open in Texas because of a WTA rule which states that only one top-10 player can feature in 250-level tournaments

At the Australian Open, Madison Keys so far swept the best phase of her career by claiming her first Grand Slam title. Solidifying her place among the elite in women’s tennis, the American star overcame two-time defending champion Aryna Sabalenka in an electrifying final.