The institute, which is affiliated with Focus on the Family, plans to honor Dungy on March20 with its “Friend of the Family” award. Kathy Sarris, president of the Indiana Equality Education Fund, a gay rights advocacy group, told The Indianapolis Star: “I am a little disappointed in that I would think he would want to stay out of the political arena, and the Family Institute is a political organization.” Raiders add fullback: The Oakland Raiders added another running back to their roster, agreeing to a $3.8 million, three-year contract with free agent fullback Justin Griffith. The deal with Griffith comes a day after Oakland signed running back Dominic Rhodes to a $7.5 million, two-year deal to team with LaMont Jordan as the team’s featured runners. Griffith had spent his four-year career as a blocking back in Atlanta, where he helped the Falcons lead the NFL in rushing the past threeseasons. Raiders offensive coordinator Greg Knapp and offensive line coach Tom Cable worked with Griffith in Atlanta. Signings: Free-agent linebacker Donnie Edwards is returning to Kansas City, where he spent the first six years of his career. Edwards, 33, agreed to a three-year deal after San Diego didn’t try to re-sign him. … Free agent running back T.J. Duckett, a former Michigan State star, has agreed to a one-year contract with the Detroit Lions. The 6-foot, 254-pound Duckett played last season with Washington. 160Want local news?Sign up for the Localist and stay informed Something went wrong. Please try again.subscribeCongratulations! You’re all set! Indianapolis Colts coach Tony Dungy’s acceptance of an invitation to speak to a conservative Christian group should not be construed as an endorsement of the group’s opposition to same-sex marriage, the head of the Indiana Family Institute said Saturday. Some local and national gay rights groups have questioned Dungy’s decision to appear at a fundraising banquet this month for the institute, which has been a leading supporter of a proposed state constitutional amendment defining marriage as only between one man and one woman. Institute president Curt Smith said the invitation was based on Dungy’s pro-family activities. “We’re very pleased coach Dungy is coming, and I don’t pretend to know his views on some of the public policy issues we work on,” Smith said.