Indianapolis Colts quarterback Peyton Manning admitted Wednesday to intentionally scoring low on the NFL’s baseline concussion tests. Manning, in comments to ESPN, said he tries to score low so that he'll be able to stay in a game when he takes the test again after being injured. Several other NFL players said they also purposely try to perform poorly on the test so they won't be benched. "After a concussion, you take the same test and if you do worse than you did on the first test, you can't play,” Manning said. “So I just try to do badly on the first test."