From John Clayton's ESPN "blog":
The bad news is he probably won't have his starting center Jeff Saturday. Saturday suffered a leg injury in Sunday's game against the Buffalo Bills and could be out a few weeks into the regular season. Seventh-round pick Jamey Richard might be used as the starter if Saturday can't play.
The good news is Saturday is not done for 2008, but this is yet another ANNOYING injury for the Colts. Fortunately, the Colts have a strong stable of good centers. Colts.com is also saying that Ryan Lilja could practice at center with Mike Pollak, a college center, would play Lilja's guard spot. Thank goodness Polian invested so much in the o-line this off-season.