Mark Martin, Trevor Bayne and others talk about a difficult race in Sin City.
Sam Hornish Jr. comments on his second career NASCAR Nationwide Series victory after the Sam's Town 300 .
Keselowski's flat tire, Mark Martin's record win and Danica Patrick's historic finish make up the last laps of the Sam's Town 300 .
Justin Allgaier, Carl Edwards, Trevor Bayne and Denny Hamlin on the exciting Sam's Town 300 finish.
Kyle Busch comments on his second place run after the Sam's Town 300 at Las Vegas Motor Speedway.
TNT's NASCAR Summer Series takes the air for final time on Sunday at 1 p.m. ET