For those who haven't seen the news in the comment threads below, Marc Colombo is injured. Todd Archer reports: Marc Colombo will return to Dallas for an MRI on his right knee in Dallas and owner and general manager Jerry Jones said the right tackle would likely need arthroscopic surgery. Calvin Watkins says this on his Twitter feed: Marc Colombo needs surgery and will miss 2-4 weeks. He's headed back to Dallas. Star-Telegram confirms: Colombo will likely be out two to four weeks following surgery, putting him out for the rest of the preseason but possibly having him back for the season opener on Sept. 12 Hat tip to all you guys who posted links in the comments thread.