INDIANAPOLIS | Tony Dungy has retired after seven years as coach of the Colts, saying this was right moment.

"These seven years have been better than I could ever have imagined," Dungy, the only black coach to win a Super Bowl, said at a news conference Monday. "I just have to thank everyone."

He will be replaced by associate coach Jim Caldwell.

Dungy has spent the past five years debating whether to leave football to spend more time with his family. He said he and his wife discussed the decision.

"We just felt this was the right time," Dungy said. "Don't shed any tears for me. I got to live a dream most people don't get to live."

Dungy is the Colts' franchise leader in victories. He went 85-27 in the regular season and 7-6 in the playoffs, including the victory over the Bears in the 2007 Super Bowl.

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