The memo said, "We have had few incidents involving serious confrontation between fans and players or others involved in the game on the field."

It's not really in their interest to move to the brink of a serious confrontation with the US.

Aside from some pushing, there was no serious confrontation with the police.

There was a serious confrontation between the Rowan and one of the girls.

This is a major dispute that could turn into a very serious confrontation.

"We want to do everything possible to avoid a serious confrontation with the city, but I can't rule anything out," she said.

She started walking back, sensing a more serious confrontation and wanting to avoid it.

"Japan's efforts simply must be intensified if we are to avert a serious confrontation on this issue."

They propose to establish a good frame of rules to fight fair even before the first serious confrontation appears.

I shall comment on just two issues which have caused serious confrontation.