It's official ... Vince McMahon is bringing back the XFL -- and Tim Tebow already has an invite to play.
The WWE honcho made the announcement Thursday afternoon ... saying the new XFL will launch in 2020 and will focus on more exciting football with zero political distractions.
That means players will be required to stand for the National Anthem.
Vince says the league will launch with 8 teams -- 40-man rosters -- and nobody with a criminal background will be eligible to play. Vince says the quality of the individual matters as much as the quality of the play.