Colts quarterback Jim Harbaugh sustained a small fracture in his right hand when he slugged NBC sportscaster and former Bills quarterback Jim Kelly.
"I consider this something personal between Jim Kelly and I. We settled things," Harbaugh said Monday about the Saturday night incident in San Diego.
Harbaugh will be placed on the non-football injured list and forfeit his salary until he is cleared to play, the team said.
Paul Justin, who started his first game of the season Sunday, will start against Tampa Bay on Sunday for the 0-8 Colts.
Harbaugh will lose an estimated $140,000 per week until he can play. He signed a four-year, $13-million contract last year.
"I regret that I have a crack in one of my bones in my hand," said Harbaugh, who reportedly sustained the injury when he hit Kelly in the head.
ESPNEWS reported that Harbaugh confronted Kelly over remarks Kelly made during a telecast in Buffalo this month about his toughness and injuries. Kelly reportedly called him a "baby" who had "overdramatized" his injuries.
Kelly was in San Diego as a color analyst for NBC and did not discuss the incident during the broadcast.
Harbaugh told the cable network, "I regret throwing the punch, but I felt I had to do something since my toughness was being questioned."
Harbaugh will count on the 53-man roster but will be deactivated each week until he can perform, the team said.
LLOYD-McCARDELL FLAP: The league is looking into what Jaguars WR Keenan McCardell says was behind a crushing hit he took from Steelers LB Greg Lloyd. McCardell said Lloyd, who hit him away from the ball on the first play from scrimmage, accused him of making a threatening phone call to Lloyd's family. "The NFL Security is gathering information at this point with both teams," league spokeswoman Leslie Hammond said.
McCardell denied making the call. He suggested someone on the Steelers' staff made it to motivate Lloyd.
BILLS: Alex Van Pelt will replace Todd Collins as the starting QB.
CHARGERS: DT Shawn Lee is considering filing a lawsuit after he was detained by police in a case of mistaken identity, his attorney said. Lee and a companion were handcuffed and questioned Friday by three officers with a California regional car theft task force. They were released.
FALCONS: QB Jim Miller was signed and Billy Joe Tolliver was waived along with WR Freddie Scott. QB Chris Chandler, out with a concussion, may return for Sunday. If not, rookie Tony Graziani will start.
VIKINGS: While commissioner Paul Tagliabue intervened in Dennis Green's feud with team owners, Green's boss said there won't be a coaching change during the season. Team president Roger Headrick said he could envision no scenario under which Green would be fired this season, despite Green's bizarre threat to sue for control of the team.