Callahan, who was calling the game between the Bulls and Helena via Web cast on the Bulls’ Internet site, voiced his displeasure with the officials as they skated by the press area following the second intermission.

Callahan was then told to vacate the arena by referee Norm Lochtin. Callahan initially refused but agreed to leave when Bulls assistant coach Kyle McGlone was also ejected during the disruption.

Taylor Fritts, a former Bulls player who handles video duties, called the first five minutes of the final period before public address announcer Lee Webber took over the play-by-play for the rest of the game.

Helena won the game, 4-2. Callahan is expected to return for tonight’s Game 2 of the playoff series.