There will be 552 players representing 24 countries at the World Cup in France. Some are household names. Many are not. Here’s a primer before the tournament begins Friday. GROUP A France Best World Cup Finish: Fourth place in 2011, when it lost to the United States in the semifinals. The Runup: The host nation, France qualified automatically. Les Bleues have shown impressive technical ability and are unbeaten since February. Perhaps more important, France is 2-0-1 in its past three meetings against the United States, a potential opponent in the quarterfinals. Player You Should Know: France’s vice captain and No. 9, Eugénie Le Sommer, has made more than 150 appearances and scored more than 70 goals for her country, and she just won her sixth Champions League title with Olympique Lyonnais Féminin. What to Expect: Les Bleues, fourth in the current FIFA world ranking, are in top form and, riding home crowds and a manageable group, should easily move on to the knockout rounds. The biggest tests await there, as does the chance to join France’s men’s team as world champions. No country has held both titles at once. South Korea Best World Cup Finish: Round of 16 in 2015….