Marvel has released the first teaser trailer for Thor: Ragnarok, and it puts a smile on Chris Hemsworth’s face.

When put into a gladiator ring with his opponent, the Hulk, Thor rejoices with a joyful shout: “We know each other! He’s a friend from work!”

The clip also previews new characters by franchise newcomers Cate Blanchett, Jeff Goldblum and Tessa Thompson.

Thor: Ragnarok

Hemsworth is back as the God of Thunder in the third Thor film with Tom Hiddleston, Idris Elba and Anthony Hopkins, plus fellow Avengers characters played by Mark Ruffalo and Benedict Cumberbatch.