When Damar Hamlin was younger, he would get very nervous before games, so much so that he wouldn't be able to do anything else. His dad, Mario, told him that it was a good thing to be nervous. "'You know that mean you care. That mean you ready,'" Damar Hamlin recalled his father saying.

The Buffalo Bills' preseason opener against the Indianapolis Colts, a 23-19 victory Saturday, marked the 25-year-old's first football game since suffering cardiac arrest during a regular-season matchup against the Cincinnati Bengals on Jan. 2.