At 40 years old, Tom Brady headed into his 18th season with the New England Patriots having won his fifth Super Bowl title and widely considered to be the greatest quarterback of all time by his peers.

With Brady not getting any younger, the question of how long he'll continue playing in NFL has become a hot topic of discussion. In an interview that will air on CBS Sunday Morning, Norah O'Donnell asked whether this season would be his last.

“No. No.”

The interview with O'Donnell is to promote his new book “The TB12 Method: How to Achieve a Lifetime of Sustained Peak Performance” which will be released on Sept. 19.

Brady talked about his diet and how he feels at 40. The Patriots quarterback claims he's faster at this point in his career than he was at the beginning.

“I would say I'm faster now and quicker now than, you know, when I first started playing football,” Brady told O'Donnell.

Although Brady feels great at 40 and ready to continue his illustrious career in the NFL with New England, the defending Super Bowl champions are coming off a season-opening loss to the Kansas City Chiefs in New England.

The Patriots are still considered to be the team to beat in the NFL this season, but they've got work to do if Brady wants to win an unprecedented sixth title in the 2017 campaign. Brady and company will go on the road to face the New Orleans Saints in Week 2 in a head-to-head battle between two elite quarterbacks with the Patriots defense trying to contain Drew Brees on Sunday.