Yes, it's really happening: Tom Brady is officially retiring.

Tom Brady, the greatest quarterback in NFL history, has retired after winning seven Super Bowls and setting numerous passing records in an unprecedented 22-year-career.

The Tampa Bay Buccaneers quarterback made the announcement on his Instagram page Tuesday morning, following weeks of speculation. It was even reported over the weekend that he would retire, only for those reports to then be refuted, with it being said Brady hadn't yet made up his mind.

"I have always believed the sport of football is an ‘all-in’ proposition -- if a 100% competitive commitment isn't there, you won't succeed, and success is what I love so much about our game," Brady began his announcement. "I have tried my very best these past 22 years. There are no shortcuts to success on the field or in life."

He then continued, "This is difficult for me to write, but here it goes: I'm not going to make that competitive commitment anymore. I have loved my NFL career, and now it is time to focus my time and energy on other things that require my attention."

The Bucs responded to Brady's announcement on Tuesday with a statement from the Glazer family, which owns the team, saying, "Tom arrived in Tampa Bay with an unprecedented level of expectations and delivered some of the most memorable moments in our franchise history. His impact on our team and community was immediate and profound. Tom's remarkable NFL journey has come to an end, but we will continue to celebrate his legendary career as the greatest quarterback of all time and are appreciated and grateful for the time he spent as a Buccaneer. Saying goodbye to a legend is never easy, but we wish him continued success in retirement."

NFL Commissioner Roger Goodell said Brady would be "remembered as one of the greatest to ever play in the NFL," nothing that his record five Super Bowl MVP awards and seven Super Bowl championships "set a standard that players will chase for years."