ORCHARD PARK, N.Y. -- Observed in the locker room after the Buffalo Bills' 23-13 loss to the Kansas City Chiefs:

Marrone's frustration evident: After a week in which Bills coach Doug Marrone was as upbeat as he's been all season, his frustration level seemed to be through the roof after Sunday's game. "I'm pissed," he said. "I'm going to use that type of energy. I'm going to go home. I'm not going to talk to anybody. I'm just going to shut it down. I'm going to be by myself. I'm not going to pet my dog. I'm going to get fired up. I'm going to come to work tomorrow. I'm going to watch this film. I'm going to be a pro. I'm going to be a man." This was about as passionate as we've seen the first-year head coach.

Marrone questions incompletion: Marrone lost his only challenge of the game in the fourth quarter, when Marquise Goodwin couldn't corral a 40-yard pass from Jeff Tuel. "I thought it was a catch all the way. I really did," Marrone said. "I saw him bounce. I saw it in his hand. I struggle sometimes ... I'd love for someone to tell me what the definition of a catch is. Because he bounced once and he had it. The second time he bounced, he didn't. I was told that the first time he bounced that he lost the ball."

Woods' X-rays negative: Receiver Robert Woods left the game in the third quarter with a leg injury. Marrone said Woods couldn't put weight on his leg, which suggested a bone injury. However, Marrone added that X-rays were negative. He did not provide a prognosis on Woods, who had played more than 90 percent of snaps this season until Sunday. Meanwhile, Goodwin, who left late in the fourth quarter, has a hamstring injury, according to Marrone.