This unit is also considered competition legal and may be used in games and tournaments.

Nowadays, three referees are usually used in professional tournaments.

In a knock out system mainly used in tournaments teams don't have to play the 5th (or 3rd) set if the winner is known.

But it has not been used recently in other tournaments.

Many of the games used in tournaments, however, were created as early as in the 1960s and 1970s.

As the name implies, this set was used in tournaments.

The new system will be used in several other tournaments throughout the season.

In all cases, the replay system is only used in knockout tournaments, when a winner must be decided.

Professional boxers consider it a waste of training time for them to learn techniques that they won't be able to use in competitions and tournaments.

It is however clear from the sources that the weapons used in tournaments were initially the same as those used in war.