One little girl is capturing America's heart.

Leah Still is the courageous four-year-old daughter of Cincinnati Bengals football player Devon Still. And for the first time since being diagnosed with Stage 4 pediatric cancer, she watched her father play in person.

Before the game, Leah shared a daddy-daughter moment. The defense tackle tweeted, "A little tea party to relax before the game."

Leah's brave battle touched everyone after her father posted a video giving her an inspirational pep talk just before an operation at The Children's Hospital in Philadelphia.

In the video, he said to his daughter, "You ready to get this cancer up out of you? Let's do it."

So it's no surprise that the stadium in Cincinnati was packed, with many fans wearing Devon Still's number 75 jersey and holding signs of support.

Leah wore a surgical mask to protect her from germs since her immune system is weakened by the cancer treatment.

At the game, an announcer said, "Thank you, Leah and Devon, for inspiring all of us."

The Bengals honored Leah by presenting a $1.3 million donation in her name to the Cincinnati Children's Hospital Medical Center.

This little girl is showing all of us what bravery is all about.