Question: Who was born first, Stan Wawrinka or Sandy Mayer?
Related documents: [0]  [DOC] Alexander "Sandy" Mayer (born April 5, 1952) is a former tennis player from the United States, who won ten titles in singles and twenty-four titles in doubles during his professional career. He was part of the winning tennis squad at Stanford University in 1973. [END] 
[1]  [DOC] Stanislas Wawrinka (] ; born 28 March 1985) is a Swiss professional tennis player. Professionally called "Stan", he reached a career-high Association of Tennis Professionals (ATP) world No. 3 singles ranking for the first time on 27 January 2014. His career highlights include three Grand Slam titles at the 2014 Australian Open, 2015 French Open and 2016 US Open, where he defeated the world No. 1 player in the final on all three occasions, reaching the final of the 2017 French Open, winning an ATP World Tour Masters 1000 title at the Monte-Carlo Masters in 2014, and reaching three other finals at 2008 Rome, 2013 Madrid and 2017 Indian Wells. He is sometimes considered as part of the newly established "Big Five", an expansion of the Big Four, which already consists of Roger Federer, Rafael Nadal, Novak Djokovic and Andy Murray. [END] 
Answer: 
Alexander "Sandy" Mayer
Alexander "Sandy" Mayer