The Indianapolis Colts worked out veteran center Steve Vallos, accotrding to a league source.
Vallos played 15 games last season for the Denver Broncos.
He's a former Seattle Seahawks seventh-round draft pick in 2007 out of Wake Forest.
He was an All-American.
He has previously played for the Cleveland Browns, Philadelphia Eagles and the Jacksonville Jaguars.
Vallos has played six NFL seasons, appearing in 59 games with nine starts.
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Aaron Wilson covers the Ravens for The Baltimore Sun
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