An image detected in an advert for the Video Game Awards has sparked speculation of a Left 4 Dead-related reveal.

The image, which you can see below, contains the message: "Infected? Report it!" In the bottom right hand corner sits "1 of 3" (as noticed by Joystiq).

Clearly, the game it refers to is zombie-related, but what is it?

Reports suggest it's anything from a PlayStation 3 port of Left 4 Dead and/or Left 4 Dead 2, to a Left 4 Dead 3 reveal.

At E3 2010 in June Left 4 Dead developer Valve announced Portal 2 would arrive on PS3 as well as PC and Xbox 360 when it's released next year.

"I've been pretty outspoken in my comments about next gen consoles," boss man Gabe Newell joked during Sony's E3 conference, "so I'd like to thank Sony for their gracious hospitality and not repeatedly punching me in the face."

But, given every game these days has zombies, "Infected" could releate to anything.