Mirza has agreed to play a match on a makeshift tennis court on Olympus Mons, the highest known mountain in the Solar System.
"I know it will be tough -- playing tennis in a spacesuit is not easy but the experience would be great," the 21-year-old told T2N2 on Friday.
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A source in the Indian government said the match might be a ploy by some Indian fundamentalists to banish Mirza from the country and lock her away on Mars.
A Muslim organisation which had issued a fatwa against the tennis player for playing in short skirts said its members were confused if the decree was valid in outer space.
"I guess if she is playing in a spacesuit, it's okay. We might even send some representative to Mars to cheer her to victory, especially if her opponent is wearing short skirts," a spokesperson said on condition of anonymity. (T2N2)