Indianapolis Colts quarterback Andrew Luck (12) celebrates with wide receiver Reggie Wayne (87) after he threw a touchdown pass to wide receiver Austin Collie (17) in the first half of an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

Indianapolis Colts quarterback Andrew Luck (12) celebrates after throwing a touchdown pass against the St. Louis Rams in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts quarterback Andrew Luck signs autographs before the start of an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

Indianapolis Colts quarterback Andrew Luck warms up before an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

Indianapolis Colts quarterback Andrew Luck warms up before the start of an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

Indianapolis Colts quarterback Andrew Luck (12) warms up before an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts quarterback Andrew Luck (12) warms up before an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts quarterback Andrew Luck (12) runs onto the field for warmups before the start of an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

St. Louis Rams quarterback Sam Bradford (8) warms up before an NFL preseason football game against the Indianapolis Colts in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts quarterback Andrew Luck (12) celebrates after throwing a touchdown pass against the St. Louis Rams in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts quarterback Andrew Luck (12) releases a pass that was caught for a touchdown while under pressure from St. Louis Rams defensive end Robert Quinn (94) in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

Indianapolis Colts running back Donald Brown (31) races to the end zone for a touchdown after catching a pass from quarterback Andrew Luck in the first half of an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

St. Louis Rams running back Steven Jackson (39) is tackled by Indianapolis Colts cornerback Justin King (21) in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts quarterback Andrew Luck (12) passes for his second touchdown against the St. Louis Rams in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts quarterback Andrew Luck (12) looks for a receiver in the first half of an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts wide receiver Austin Collie (17) makes a touchdown reception from quarterback Andrew Luck while under pressure from St. Louis Rams defensive back Craig Dahl (43) in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

Indianapolis Colts head coach Chuck Pagano celebrates after a touchdown reception against the St. Louis Rams in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

Indianapolis Colts quarterback Andrew Luck (12) hands the ball off to running back Donald Brown (31) in the first half of an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

St. Louis Rams wide receiver Brian Quick (83) is tackled by Indianapolis Colts defensive back DJ Johnson (43) after making a first down in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts running back Donald Brown (31) rushes with the ball while chased by St. Louis Rams defensive back Cortland Finnegan (31) in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts running back Delone Carter (34) dives for a touchdown over St. Louis Rams linebacker Rocky McIntosh (59) and defensive tackle Cornell Banks (96) in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts quarterback Drew Stanton (5) is tackled by St. Louis Rams safety Rodney McLeod (38) and linebacker Justin Cole after a six-yard gain in the second half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. The gain set up a Colts touchdown on the next play. (AP Photo/AJ Mast)

Indianapolis Colts running back Darren Evans (32) rushes one yard for a touchdown against the St. Louis Rams in the second half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts wide receiver Quan Cosby (14) is tackled by St. Louis Rams linebacker Jo-Lonn Dunbar (58) after a 32-yard pass to the one-yard line in the first half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. The Colts scored a touchdown two play later. (AP Photo/Michael Conroy)

Indianapolis Colts running back Darren Evans (32) celebrates with Seth Olsen (73) after rushing for a touchdown against the St. Louis Rams in the second half of an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/Michael Conroy)

Indianapolis Colts quarterback Andrew Luck (12) waves as he leaves the field after their 38-3 win over the St. Louis Rams in an NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. (AP Photo/AJ Mast)

Indianapolis Colts quarterback Andrew Luck (12) shakes hands with fans after an NFL preseason football game against the St. Louis Rams in Indianapolis, Sunday, Aug. 12, 2012. The Colts won 38-3. (AP Photo/AJ Mast)

Indianapolis Colts quarterback Andrew Luck (12) talks St. Louis Rams quarterback Sam Bradford (8) after their NFL preseason football game in Indianapolis, Sunday, Aug. 12, 2012. The Colts won 38-3. (AP Photo/Michael Conroy)