(WHDH) – Tom Brady is not just saying goodbye to the Patriots — he is also saying goodbye to some of his best buddies.

The Best Buddies Tom Brady Football challenge has kicked off summer every year, and Brady would bring along some of his pals from the Patriots to play alongside groups of participants with intellectual and developed disabilities.

Brady has been heavily involved in Best Buddies for more than 15 years.

“If you had to isolate it on one person, he’s done more for us in New England than any individual- other than the buddies themselves,” Shriver said of the former Patriots quarterback. “I think it’s been great to see him develop and grow and understand our program so I think he has a lot of passion.”

In December, Brady decided to take a step back from his duties as honorary co-chair of the Best Buddies Challenge: Hyannis Port.

“Since 2003, Tom has proven himself to be a relentless and committed advocate for individuals with disabilities, always going above and beyond the call of duty to help promote a world of inclusion and opportunity for this population,” said Anthony K. Shriver, founder, chairman & CEO of Best Buddies International. “We look forward to seeing all of the phenomenal things he will help us accomplish as a Global Ambassador.”