Rumor: Jim Carrey or Adam Sandler in 'Guardians of the Galaxy' Movie?

There have been plenty of rumors surrounding casting for Guardians of the Galaxy, but this latest round is by far the most interesting.  According to Latino Review, Marvel Studios is seeing if Jim Carrey or Adam Sandler are available.

Now, I can only imagine this would be for a voice acting role (perhaps Rocket Raccoon?). In the off chance this isn't limited to voice acting, I could definitely tolerate Jim Carrey -- he's certainly a fine actor -- but Adam Sandler? Well, this is my immediate response. 
  I suppose going for a big name or bringing heavy comedy makes sense from their angle. These characters are widely unknown to the general audience. Personally though, I was hoping marketing alone could compensate for that and still reel in audiences. After all, this should be a "must see" movie for anyone that saw Avengers or wants to see Avengers 2 and that's an insane amount of people.

Additionally, there's also a new trio of names allegedly in the running for Star-Lord. Wes Bentley, Chris Lowell & Cam Gigandet are the latest names to add to the growing list.  
 
Viners, what do you think about this latest batch of rumors? 
 
Source: Latino Review