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Elena Delle Donne

When the WNBA season ends, many of its stars travel overseas for bigger paydays. Elena Delle Donne isn't among them.

Delle Donne, a perennial All-Star and league MVP in 2015, opts to head home in Delaware. That's because Elena wants to spend the time with older sister Lizzie, who is blind and deaf and suffers from cerebral palsy.

"Lizzie doesn't know that I play basketball," Elena says on HBO's Real Sports. "She doesn't know that I'm 6-5. She just knows that I am one of her people, and a really important person in her life. And that's all I want to be."

The profile of this special connection between the Delle Donne sisters is part of the latest Real Sports report that premieres Tuesday May 21 at 10 p.m. ET/PT on HBO. Here's a sneak peek:

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