ESPN - Madison Keys spreading kindness on and off the tennis court

Madison Keys has seen the dark side of the internet. Like so many of her peers, she has received more hateful messages and comments than she can count. The tennis star has talked openly about it over the years and has even previously shared some of the abuse she has encountered on social media.

However, Keys also knows what the internet is like at its best. She has seen the good that can come from it. She has experienced how much a relatively simple direct message from a mom thanking her for being such a great role model for her daughter can dramatically alter her mood -- and it's that feeling she wants to replicate for the masses.