Australian Open champion Madison Keys is no longer able to play at a WTA tournament in the U.S. in February, after her success in Melbourne made her too highly ranked to enter. Keys, who rose to world No.

Madison Keys has been forced to pull out of next month’s ATX Open in Texas as a direct result of her winning the Australian Open. Keys sent a shiver down the spine of the tennis world when she toppled back-to-back Australian Open champion Aryna Sabalenka in last week’s Melbourne showpiece.

The first WTA 1000 of the season is set to begin on February 9 as the opening major event of the Middle East Swing. Despite still being over a week away, two significant withdrawals have already been confirmed,