Instructions Full Game: These are multiple-choice quizzes with four possible answer choices that include all questions in a given set.     
What two players, who ranked first in StadiumTalk.com's tennis rivalry rankings, faced off against each other 80 times in the 1970s and 1980s, and, except for 23 weeks, were the top ranked players in the game for 12 staight years?
John McEnroe & Bjorn Borg
Billie Jean King & Margaret Court
Chris Evert & Martina Navratilova
John McEnroe & Jimmy Connors