Former Dallas Cowboys veteran center Phil Costa 'is visiting the Indianapolis Colts today and the Cincinnati Bengals on Friday, according to a league source.
He has previously visited the Detroit Lions and New England Patriots.
Costa was cut by the Cowboys rather than accept a reduction in pay.
Costa is a 6-foot-3, 302-pounder from Maryland.
He has started 20 of 26 career games, but started no games last season after the Cowboys drafted center Travis Frederick in the first round.
Costa started every game during the 2011 season.
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Aaron Wilson covers the Ravens for The Baltimore Sun