(Cover) - EN Showbiz - Arnold Schwarzenegger has been running "faster than traffic" to get in shape for The Expendables 2.

The action hero had a small part in the original movie and has signed on to appear in the sequel. He'll play a character called Trench again, although the details of the role haven't been revealed.

However, it seems Arnold may have a larger part this time round as he's been spotted frantically training ahead of shooting.

"He was seen in the main street of Brentwood, Los Angeles, dressed in high tech compression latex togs literally running faster than the traffic, arms and legs pumping furiously as a trainer holding a stopwatch timed him pumping up for his new Expendables 2 flick," a source told National Enquirer.

"The man was running like a machine, or cyborg!"

The Expendables 2 will also see Sylvester Stallone, Bruce Willis and Jason Statham reappearing. That's said to be part of the reason Arnold is on a fitness drive.

He's worried that the years spent as Governor of California have left him out of shape.

"Arnold's not about to be upstaged by his superstar co-stars. He's started a strict, intense exercise/diet regimen and it's working. He and his trainer have been power running down that long boulevard near his home, and they really do run faster than the cars. Arnold looks amazing in better shape than men less than half his age!" another insider explained. (C) Cover Media