I came across this story and it was reported by the San Francisco Chronicle according to the Web site.
Link: Raiders' Lechler Was Punched in Face by Teammate
Oakland punter Shane Lechler was reportedly punched in the face by teammate Terdell Sands during an argument on a November 23 flight home from Denver.
The report was confirmed by two former assistant coaches, a front-office member, a team administrator and an AFC head coach from outside the organization.
Sands wasn't fined or suspended by the team, and the incident could be a reason why Lechler leaves the Raiders via free agency.
Lechler has complained openly about the climate of the past six losing seasons and declined to say he wanted to come back.
"They should have cut Sands already for that," a team official said on the condition of anonymity. "That's just ridiculous."