Indianapolis Colts' Anthony Castonzo, left, runs a drill against Ben Ijalana during NFL football training camp in Anderson, Ind., Thursday, Aug. 4, 2011. (AP Photo/Darron Cummings) By Darron Cummings
ANDERSON, Ind. (AP) -- The Indianapolis Colts' refurbished offensive line, with rookies Anthony Castonzo and Ben Ijalana, will get its first test Saturday at St. Louis. The Colts let left tackle Charlie Johnson leave for Minnesota, and the race to replace him is on. Jeff Linkenbach, a part-time starter as a rookie last season, is the starting left tackle for now. Coach Jim Caldwell says Castonzo, the first-round pick from Boston College, is improving rapidly as the backup. Ijalana, a second-round pick from Villanova, is listed as the No. 2 right tackle. Jacques McClendon, a reserve last season, is listed as the starting left guard. The youngsters join veterans Jeff Saturday, Mike Pollak and Ryan Diem. Saturday said the Colts' recent decision to re-do Diem's deal will help smooth the line's transition.