Sunday's the big day for Ryan Reynolds!
He's running the world famous New York Marathon to raise money and awareness for Parkinson's Disease.
Ryan's dad's struggle with the disease is what inspired him to run the 26.2 mile race.
On Friday, he picked up his runner credentials and took part in a marathon press conference.
He also disclosed that his lovely new wife, Scarlett Johansson, will be there somewhere on the course cheering him on.
If you're cheering on a friend or loved one on Sunday, be on ScarJo lookout for us!
Good luck, Ryan!
[Image via Getty Images.]