UPDATED:THR confirms that Mark Ruffalo is in final negotiations to reprise the role of Hulk/Bruce Banner in 'Thor: Ragnarok.' THR also confirms that Tom Hiddelson and Jaimie Alexander are also negotiating their returns as Loki and Lady Sif, respectively.

(Original story below.)

Thor might soon be getting a visit from one of the Science Bros.

Bruce Banner (Mark Ruffalo), aka The Hulk, is rumored to have a role in Marvel's "Thor: Ragnarok," according to Bleeding Cool.

The site's inside sources claim that Hulk will join forces with Thor in his third film, which finds the God of Thunder battling the Norse equivalent of the Apocalypse. (Something "Age of Ultron" hinted at when Scarlet Witch cast a spell on Thor.)

Bleeding Cool has also heard that some of the sequel's action will take place on a "distant planet," one that is neither Asgard or Earth. This taken-with-grain-of-salt-sized rumor hints that, maybe, "Raganrok" will incorporate elements from the long-rumored "Planet Hulk" storyline -- which finds Hulk going all gladiator on an alien world.

The site's sources also confirmed that, should the Hulk rumor pan out, Tom Hiddleston and Jaimie Alexander will also appear in the film, reprising their respective roles of villain "puny god" Loki and Lady Sif.

We'll find out if Hulk will go smash when "Thor: Ragnarok" hits theaters July 28, 2017.