21.   A unilateral declaration of statehood less than two weeks before the elections would likely give him a boost and weaken his main challenger, opposition leader Ehud Barak.

22.   According to partial, official results, Moi had a healthy lead over his main challenger.

23.   After trailing for several weeks, Prime Minister Benjamin Netanyahu pulled even with his main challenger, Labor Party leader Ehud Barak, according to two polls published Friday.

24.   Any Russian military breaches of the cease-fire also will reflect badly on Yeltsin and are sure to be exploited by his main challenger, Communist leader Gennady Zyuganov.

25.   Cuba should be the main challenger to the United States in the medals standings.

26.   Five time Tour of France winner Miguel Indurain, who was considered one of his main challengers, withdrew because of exhaustion last week.

27.   Greene was asked who his main challenger in Seville would be in the absence of Boldon.

28.   Germany is also a main challenger.

29.   He is also considered a main challenger to Milosevic to lead the country.

30.   He is scheduled to hold a televised debate with his main challenger, conservative New Democracy party leader Miltiades Evert.