CONCORD, N.C. — Kevin Harvick moved into the third round of NASCAR's championship race with a victory Saturday night at Charlotte Motor Speedway, where tempers flared after the race and two drivers had to be restrained from fighting Brad Keselowski. Harvick had to win a two-lap sprint to the finish to grab his third victory of the season, but attention turned quickly to two near-brawls in the garage involving Keselowski. Denny Hamlin was held back by his own crew from going after Keselowski, who appeared to try to wreck Hamlin after the race.