11.   A team without a timeout cannot issue a challenge.

12.   Afilias plans to issue further challenges, which will be supervised by the World Intellectual Property Organization, in coming weeks.

13.   After losing twice at home in the past five days, this is no time to be issuing challenges.

14.   After the season-opening debacle in Chicago, Cowboys coach Barry Switzer issued a challenge to his team before its meeting against the New York Giants.

15.   Buddy Ryan issued the challenge early in the week.

16.   But not enough to keep Karl from issuing a challenge.

17.   By firing Primakov, Yeltsin issued a challenge to the opposition-dominated Duma, the lower house of parliament, where Primakov enjoys strong support.

18.   Chilean wine producer Walnut Crest has issued a challenge that should excite all wine lovers.

19.   Catlett, who issued the challenge, has advantages in height, speed and quickness.

20.   Dershowitz Friday issued a challenge to the newspaper and to Barnicle to publish the column Barnicle mentioned on the Brudnoy show, which never appeared.