Question: Barbara Jordan and Mark Knowles are both what?

Related documents: [0]  [DOC] Mark Knowles (born 4 September 1971) is a former tennis player from the Bahamas, specialising in doubles tennis. He has won a number of Grand Slam tournaments, most notably partnering with Daniel Nestor. At various times between 2002 and 2005 he was ranked World No. 1 in doubles. He is a five-time Olympian. [END] 
[1]  [DOC] Barbara Jordan (born April 2, 1957) is a former professional female tennis player from the United States who won the 1979 Australian Open singles title. [END]  
Answer: former tennis player
former tennis player