Tom Brady has done it once before, and could he do it again?Amid the NFL offseason drama, Brady took to the field once again, playing in the Fanatics Flag Football Classic that was relocated to California amid the war in Iran.Brady took to the field for the first time in three years at the Fanatics Flag Football ClassicGettyOne thing became very clear to fans watching — Brady still has an electric arm, and can turn it on when needed.This was evidenced by a beautiful play he made, stepping away from an effort to grab one of his flags and firing a touchdown pass to free agent Stefon Diggs.It was a play that brought back memories of Brady’s legendary career, and had fans calling for him to come out of retirement.After the event, Brady retweeted the clip of his pass, with the message “Gets you thinking.”On 1 February, 2022 – after three seasons with the Tampa Bay Buccaneers where he won Super Bowl LV – Brady announced his retirement from the league.Just six weeks later, he made a U-turn on the decision, citing ‘unfinished business’ as the reason he wasn’t quite ready to step away.His final year in 2023 saw him as the oldest active player in the NFL and his performance was still strong.The Buccaneers finished 8-9, but lost to the Dallas Cowboys in the wild-card round of the playoffs.On the exact date a year later, Brady announced on social media he was retiring “for good”.Since officially stepping away, Brady has remained close to the game, signing a mammoth 10-year, $375 million contract with FOX to become their lead analyst.Brady has sparked rumors of a return to the NFL following his flag football displayGettyBrady has remained close to the game since retiring in 2023GettyHe has also become a minority owner of the Las Vegas Raiders, and is expected to play a big role in their presumed selection of Fernando Mendoza in the upcoming 2026 NFL Draft.But if Brady wants to reverse his retirement decision for a second time, he is set to face additional roadblocks this time around.NFL rules could prevent Brady from coming out of retirementBrady is widely regarded as the best quarterback of all time. When he officially retired from the league in 2023, he held NFL records in career passing yards, touchdowns, wins, playoff wins and playoff passing yards – and that’s naming just a handful.Brady’s ownership stake in the Raiders is likely to hinder any chance of a comeback.Under current rules, it would be impossible for him to play for any other team but the Raiders, and even in this case, he would need a vote of his fellow owners to allow him to do it.But, the seven-time Super Bowl champion tends to get what he wants. If he wants to play, the league is highly likely to find a way to make it work.Several roadblocks would likely hamper a potential return to the NFL for BradyGettyThe NFL rolled over on the glaring conflict of interest from attending broadcast meeting and partially owning one of the franchises.Even if Brady wasn’t serious in his tweet, his message has got people speculating as to whether he could make a stunning return to the league.Stay up to date with the latest from the NFL across all platforms – follow our dedicated talkSPORT USA Facebook page and subscribe to our talkSPORT USA YouTube channel for all the news, exclusives, interviews and more.