81.   Russia and OPEC locked horns for long weeks over the issue through November and December last year.

82.   Serbia and the United States locked horns Thursday after Belgrade accused US lawmakers of backing the pro-democracy movement which forced a climbdown earlier this week by President Slobodan Milosevic.

83.   The French first divsion enjoy a weekend off, with Bordeaux and Strasbourg set to lock horns in the League Cup final.

84.   The incident could increase tensions in the often rocky relations between Paris and Washington, who have locked horns on a series of trade and diplomatic issues.