The Avengers: Doomsday teaser that aired during Game 1 of the World Series on Friday, 23 October 2026 reunites Steve Rogers and Thor, with the pair joking about Mjolnir.
According to ComicBook.com, Marvel Studios’ preview splices new scenes between footage of real baseball players reacting. It shows Thor and Steve in what looks like New Avengers Tower, discussing whether the former Captain America can still wield Mjolnir, alongside a Fantastic Four first pitch and a joke at Ant-Man’s expense.
What happens in the Avengers: Doomsday teaser?
The clip opens at a Brooklyn Dodgers game on Earth-828, the Fantastic Four’s home universe, where Pedro Pascal’s Mister Fantastic throws the ceremonial first pitch to Joseph Quinn’s Johnny Storm. MLB stars including Bryce Harper and Freddie Freeman watch from the sidelines until Robert Downey Jr.’s Doctor Doom crashes the game.
Then it cuts to the Avengers. Chris Evans’ Steve Rogers and Chris Hemsworth’s Thor trade jabs over hammers. Steve last lifted Mjolnir in the final battle against Thanos in Avengers: Endgame. Paul Rudd’s Ant-Man is then left unsure whether to call Steve or Anthony Mackie’s Sam Wilson “Cap”, before quick shots of Sam’s Avengers team, the X-Men and the Wakandans.
When did the Avengers: Doomsday teaser air?
It ran during the series opener between the Tampa Bay Rays and the Milwaukee Brewers, which started at 20:00 ET (02:00 SAST on Saturday, 24 October 2026). Marvel Studios introduced the clip with the line “Worlds collide.” The film is scheduled to open in cinemas on Friday, 18 December 2026.
Not everyone felt the wait was worth it. The report says the segment was light on new information for viewers who sat through the early innings, and one X user, @Dsupplystore1, summed up the mood after the broadcast ended:
“Bro what was this trailer.”
@Dsupplystore1, on X
How did Steve Rogers and Thor get here in Avengers: Doomsday?
The reunion has been building since the first teaser on Tuesday, 23 December 2025, which showed Steve holding a baby. A Thor-focused follow-up came days later, with the god of thunder praying to Odin in a forest and kissing his daughter, Love, on the forehead.
The reunion first appeared in the full trailer shown at CinemaCon on Thursday, 16 April 2026 and released online in July 2026. Thor is stunned to see Steve, who went back in time to grow old with Peggy Carter at the end of Endgame, and Steve picks up Mjolnir.
Evans, who has said fatherhood changed how he chooses work, addressed Steve’s return while promoting the film at CinemaCon, explaining why the character is back after his farewell in Endgame and what the other heroes need from him:
“There’s a very real reason why these heroes need Steve Rogers.”
Chris Evans, speaking at CinemaCon 2026
Thor’s arc is being steered by the film’s directors, Anthony and Joe Russo, who bring back the warrior version of the hero seen in Avengers: Infinity War. Joe Russo has said the team is carrying forward “the Infinity War Thor”, and described him this way:
“We love that sort of warrior version of him, that warrior who has lost everything, who is seeking meaning through battle.”
Joe Russo, co-director of Avengers: Doomsday
Sources
- ComicBook.com, New Avengers: Doomsday Preview Released by Marvel During World Series (23 October 2026)
- ComicBook.com, Doomsday Sneak Peek Blasted By Viewers After World Series Hype (23 October 2026)
- ComicBookMovie.com, Avengers: Doomsday MLB Teaser Features Earth-828's Fantastic Four And New Avengers Tower Scenes (23 October 2026)
- TheWrap, Avengers: Doomsday teaser falls flat after promise of a new look (23 October 2026)
- Fiction Horizon, Avengers: Doomsday World Series teaser sends the Fantastic Four to the ballpark (24 October 2026)
- NewsBytes, Avengers: Doomsday new teaser gives a glimpse of Fantastic Four (24 October 2026)
- Daijiworld, Avengers: Doomsday teaser unveils Steve Rogers, Thor (24 October 2026)
- FOX 13 Tampa Bay, Rays vs. Brewers World Series schedule
- Variety Australia, Avengers: Doomsday trailer at CinemaCon (17 April 2026)
- Khaleej Times, Avengers: Doomsday trailer unveiled (17 April 2026)
- Rolling Stone Canada, Thor Battles Doctor Doom, Reunites With Steve Rogers in New Avengers: Doomsday Trailer (20 July 2026)
- HollywoodLife, Is Chris Evans in Avengers: Doomsday? His Captain America Return Explained
- CinemaBlend, The Russo Brothers Talk Changes To Thor Coming In Doomsday (29 September 2026)
- Marvel, Watch the Avengers: Doomsday Teaser Trailers
- Wikipedia, Avengers: Doomsday
- Swisher Post, Avengers: Doomsday teaser finally drops as Marvel maps the long road to December 2026
- Swisher Post, Avengers: Doomsday Thor teaser breakdown
- Swisher Post, Chris Evans says fatherhood shifted his priorities





