Tom Brady says he's relishing the opportunity of new challenges at the Tampa Bay Buccaneers and insists he's ready to "adapt and evolve".
The six-time Super Bowl winner ended his 20-year association with the New England Patriots last week to sign a two-year $60m deal with the Bucs, who haven't gone beyond the regular season in 12-years.
"To lead a team is something I love doing, just as much today as I did when throwing a ball as a kid in a parking lot," 42-year-old Brady has told a Tampa Bay conference call.
"I train hard, I try to keep my body as fit as possible. Mentally I try to stay sharp, although it is going to be a different challenge this year in learning.
"I am going to do everything I can to do the best I possibly can and am grateful for this opportunity."
The former number 199th overall draft pick is already considered among the legends of the NFL already but he's not willing to rest on the laurels of former glory:
"Obviously, where I have been, I have learned a great deal, and as I move forward, no-one cares what you have done in the past.
"There are a lot of things I have got to get up to speed on - obviously, learning different terminology - and that's a unique challenge that I haven't faced, but it is one that I am looking forward to also.
"For all of us, things in life can change, you have got to be able to adapt and evolve. With each of those changes come an opportunity to learn and grow, so that is where I am at."