As a cart carrying Ali came onto the field, many people didn't know who it was. They didn't immediately recognize the aged man with the severely shaking hands as the 70-year-old Muhammad Ali.
Ali is one of about one million Americans with Parkinson's Disease.
His appearance sparked a lot of comments on social media sites about Parkinson's and its effects.
One tweet read, "Watching Ali tonight made my heart ache."
Parkinson's is a progressive disease.There are treatments for the symptoms such as stiff muscles and tremors, but there is NO cure.
There is however a way to get involved in finding a cure and better treatments. Join the "Stamp Out Parkinson's Walk" on April 21st in Philadelphia.
The walk takes place from 8 AM to 12 PM, at Lloyd Hall at the base of Kelly Drive in Fairmount Park.
Action News meteorologist David Murphy will be among the walkers.
For more information, check out the "Stamp Out Parkinson's" web page.
