Officially Rob Gronkowski was traded to Tampa Bay, but according to the video spoof Tom Brady posted on social media, he was actually summoned by his once-and-future quarterback with the aid of a conch shell.

Tuesday football fans learned that Gronkowski had come out of retirement and requested a trade to the Buccaneers from the Patriots, who accommodated the All-Pro tight end by sending him to Tampa for a fourth-round draft pick. Brady, who won three Super Bowls with Gronkowski in New England, had already signed a two-year, $50 million deal with the Bucs last month.

On Wednesday, the 42-year-old Brady celebrated their reunion by posting video on social media showing him triumphantly blowing into a conch shell to call Gronkowski to his side.

'A little tired, but Gronk reporting,' a winded Gronkowski is seen telling Brady after running into frame.

Brady captioned his post: 'Time to run it back @RobGronkowski.'

On Wednesday, the 42-year-old Brady celebrated their reunion by posting video on social media showing him triumphantly blowing into a conch shell to call Gronkowski to his side

A flock of birds is seen quickly flying off a tree after the cartoonish sound of Brady's conch shell is heard. Gronkowski is then seen running into frame from behind some trees

'A little tired, but Gronk reporting,' a winded Gronkowski is seen telling Brady after running through some trees to be by his longtime teammate's side

A flock of birds is seen quickly flying off a tree after the cartoonish sound of Brady's conch shell is heard.

The video does not appear to have been shot in Florida since the trade, but rather long before the deal between the Patriots and Buccaneers was consummated.

Gronkowski was one of the league's most dominant tight ends when he walked away from the game in March 2019. He was part of teams that won nine division titles, appeared in eight AFC championship games and won three NFL titles in nine seasons.

'He will honor his current contract at this time,' agent Drew Rosenhaus said.

Gronkowski, who turns 31 on May 14, has one year left on his deal at $10 million, which may have motivated the Patriots to deal him for a fourth-round pick.

New England has only $1 million in cap space, and needs to be shedding salary - not adding it - ahead of this week's NFL Draft. The addition of Gronkowski's $10 million back onto the Patriots' books could have cost the team other players who are expected to contribute this season.

It remains unclear if Brady and Gronkowski had been planning their reunion all along.

Brady did tell Howard Stern that he knew going into the 2019 season that it would likely be his final campaign with the Patriots.

And a few days after signing with the Bucs in free agency, Brady said he sensed the front office's commitment to do whatever necessary to be successful.

'I don't want to get into every process to the decision I was making at the time, but there were a lot of things that really were intriguing to me about the organization — the players, and the coaches and the willingness of everyone to try to accomplish what the goal of playing football is, which is to win,' the four-time Super Bowl MVP said.

'I'm going to try to do everything I can in my position, and in what I am responsible for to make it happen,' Brady added. 'I've got to trust that everyone else is doing the exact same thing. That part is no different from what I've experienced in 20 years of my own role.'

Rob Gronkowski (right) and Tom Brady (left) won three Super Bowls together in New England

Gronkowski was an All-Pro in 2011, 2014, 2015 and 2017. He had 43 receptions for 682 yards and three TDs in 2018, his final season with the Patriots.

Without his favorite target, Brady had one of his worst non-injury seasons last year, throwing for 4,057 yards with 24 TDs vs. eight interceptions.

The Patriots, nevertheless, won 12 games and extended their string of consecutive playoff appearances to 11 before a sputtering offense contributed to a first-round loss to the Tennessee Titans.

In addition to 521 receptions for 7,861 yards and 79 touchdowns in 115 regular-season games, the five-time Pro Bowl selection has 81 catches for 1,163 yards and 12 TDs in 16 playoff games.

Even before adding Gronkowski, the tight end position was considered one of Tampa Bay's biggest strengths, with O.J. Howard and Cameron Brate teaming with Pro Bowl receivers Mike Evans and Chris Godwin to form the best collection of targets Brady has had to work with in more than a decade.

The Bucs are coming off a 7-9 finish and missed the playoffs for the 12th consecutive season. They haven't won a postseason game since the franchise's only Super Bowl championship run 18 years ago.

Brady played in nine Super Bowls in 20 seasons with the Patriots, who appeared in 13 AFC championship games and won 17 division titles while the three-time league MVP was their primary starting quarterback.