The Tom Brady watch officially has begun again.

The 45-year-old Brady faltered in the Buccaneers’ 31-14 wild-card round playoff loss to the Cowboys on Monday night, completing 35 of his 66 passes for 351 yards — an average of 5.3 yards per attempt — and two touchdowns. He also threw a costly interception in the end zone.

With his contract set to expire, options for Brady include a return to the NFL for a 24th season, going into the Fox Sports broadcast booth or perhaps a more leisurely retirement into a pursuit of businesses and hobbies outside of football.

There are a number of feasible scenarios for Brady to return to the NFL, however.

Brady has spent his last three seasons in Tampa, winning a Super Bowl in his first season there. The Buccaneers reached the playoffs all three years, winning the NFC South each of the last two. Their top two receivers, Chris Godwin and Mike Evans, are under contract.

Though the Bucs won their division, they finished with an 8-9 record, Brady’s first losing season in the NFL, in the team’s first year with Todd Bowles as head coach after Bruce Arians moved into a front office role. There have been rumors that offensive coordinator Byron Leftwich could be on the hot seat after Brady’s offense struggled.

Brady played for 20 seasons in New England under Bill Belichick and they won six Super Bowls together. In November, The Athletic’s Jeff Howe, who has covered the Patriots for many years, floated a possible reunion. “Don’t ever write off the Patriots,” Howe wrote, adding that Brady and Belichick “still have an abundance of respect for one another.”

Belichick announced last week that the team will be looking to fill its offensive coordinator position after Matt Patricia, who effectively ran the offense despite not formally having that title, could not lead the unit to better production with quarterback Mac Jones.

Miami has gone after Brady before, with owner Stephen Ross getting hit with punishment after an NFL investigation revealed the team tampered in trying to put together a package deal with Brady and former Saints coach Sean Payton.

Quarterback Tua Tagovailoa played well when healthy in Mike McDaniel’s first season as head coach, but there is concern about his long-term durability. He missed four regular-season games plus the wild-card round playoff loss to the Bills after he sustained three concussions this year.

This would be a reunion between Brady and former Patriots offensive coordinator Josh McDaniels, now Las Vegas head coach. All signs point to the franchise parting ways this offeeason with Derek Carr, who has been its starting quarterback for nine years.

Other teams that are plausibly in the market for a new starting quarterback include the Titans, Saints, Panthers, Falcons, Colts, Texans and Commanders.

Last offseason, Brady signed a long-term deal to be the top color commentator for Fox Sports’ NFL coverage when he retired. The Post’s Andrew Marchand reported it would be a 10-year deal worth a total of $375 million. Greg Olsen spent his first season in the role this year alongside Kevin Burkhardt. The duo exceeded expectations after Joe Buck and Troy Aikman left for ESPN.

Brady and model Gisele Bündchen got divorced in October after 13 years of marriage. The two share a son and a daughter. Brady also has a son, with actress Bridget Moynahan.

Brady has been involved with a number of business ventures, ranging from fashion to fitness and wellness to the failed crypto exchange FTX.