It looks like the Arizona Cardinals are adding to their offensive line.Offensive tackle Eric Winston about to sign with the Cardinals, per source. Good addition.— Jim Trotter (@SI_JimTrotter) July 25, 2013 Comments Share Winston, 29, spent the first six years of his career with the Houston Texans before signing with the Kansas City Chiefs last season.The Chiefs opted to release Winston in the offseason after drafting Eric Fisher. Top Stories The 5: Takeaways from the Coyotes’ introduction of Alex Meruelo Derrick Hall satisfied with D-backs’ buying and selling Grace expects Greinke trade to have emotional impact Former Cardinals kicker Phil Dawson retires He’s started all 16 games in every season but his first, and is generally regarded as one of the better tackles in the league.The Cardinals would certainly benefit from the depth Winston could provide. He can play either right or left tackle. Arizona had the league’s worst offensive line last season, with right tackle Bobby Massie struggling mightily in his rookie campaign.