icon, vector, symbol, icon set, design, clip art, illustration, design element, graphical user interface, line icon, outline, single line, line art, stroke - illness, sport, sports organization, sports team, competition round, sports event, sports league, match - sport, sports activity, sports equipment, sports official, sport set - competition round, sport symbol, sports shop, sports championship, sports day, sports champion, sports training, sports team event, sports training camp, tennis, tennis tournament, french tennis open, us open tennis championships, tennis league, tennis team, world team cup, tennis ball, sports ball, tennis racket,