VGA video contains "Infected" tease, looks like Left 4 Dead

Looks like Valve may be teasing something related to the Left 4 Dead franchise during the VGAs next month.

While looking over the latest commercial for the Video Game Awards, in the "World Premiere" section, it teases not only a football game (NFL Blitz maybe?)and the now infamous BioWare Quickmark, but if you pause the video at 20 seconds in, you will see the image above.

At the bottom of the image, enlarged below, you will see it says 1 of 3.

Could it be an massive update to Left 4 Dead 2? Left 4 Dead 2 on PS3 and something to do with Sony's "save the date" tease? The announcement of Left 4 Dead 3?

Who knows. It's Valve after all. Maybe. Maybe not. Watch the video for yourself and check out a larger version of the image below.

We've been pondering over it for an hour or more already.

There's also an analysis video posted by E4GTV at the very bottom, so looks like it's not only us who think it is L4D-related, along with the rest of the internet.