1.   Claudio Reyna, the United States captain, appeared to bump the referee and had to be restrained by his teammate Jason Kreis.

2.   During the past year a parent was banned from games for bumping a referee, he says.

3.   He accidentally bumped the referee Jim Clark and could have been ejected.

4.   Caligiuri bumped referee Raul Dominguez while protesting the call and was ejected.