He was evaluated and released from the infield care center and will drive a backup car as he begins his quest to run 1,100 miles next Sunday, completing the double with NASCAR's most grueling race of the season, the Coca-Cola 600 at Charlotte Motor Speedway (Sunday, 6 p.m. ET, FOX). NASCAR's most popular driver, Dale Earnhardt Jr., checked in on his fellow racer on Monday on Twitter More...