Maria Sharapova pledged to "rise up again," a day after she was denied a wild-card entry for the French Open.

The Russian, who has recently returned to the tour after serving a 15-month doping ban, tweeted on Wednesday: "If this is what it takes to rise up again, then I am in it all the way, everyday.

"No words, games, or actions will ever stop me from reaching my own dreams. And I have many."