Napoli started walking toward the mound and yelling at McCullers. Home plate umpire Gerry Davis tried to head off Napoli and other crew members tried to keep the teams from rushing onto the field.
They did not succeed and tempers flared among a number of players in a tussle in front of the pitcher's mound. Carlos Gomez and Shin-Soo Choo appeared especially animated on the Rangers side. McCullers was barking right back at Napoli and his catcher Brian McCann was also irate about the situation.
There was some pushing and shouting, but nothing seriously physical.