Tony McQuay promises US 400m redemption

Tony "Mr. Clutch, Mr. Anchor" McQuay ran the third leg on the U.S.' silver medal 4x400m team. Whenever we saw him in Florida colors, he was on the anchor leg. The U.S. had no one in the 400m final and took had to settle for silver for the first time in years... McQuay has a promise that he hopes to fulfill in four years.