BRUSSLES, BELGIUM - SEPTEMBER 18: Leonardo Mayer of Argentina plays a backhand shot during the singles match between Steve Darcis of Belgium and Leonardo Mayer of Argentina on Day 1 of The World Group Semi Final Davis Cup match between Belgium and Argentina at Forest National Stadium on September 18, 2015 in Brussels, Belgium. (Photo by Jorge Luis Alvarez Pupo/LatinContent via Getty Images)
