A roadmap to follow for the wrestling competition at the Paris Olympics:

—Hassan Yazdani, Iran: Nicknamed “The Greatest,” Yazdani was a gold medalist at 74 kilograms in 2016. He lost to David Taylor in the gold medal match in the 86-kilogram division in Tokyo. Taylor isn’t competing in Paris, possibly clearing a way for Yazdani to return to the top.

—Taha Akgul, Turkey: A 2016 gold medalist, Akgul was among those who lost to American Gable Steveson at the Tokyo Games. He beat Georgia’s Geno Petriashvili, the silver medalist in Tokyo, at the European Championships earlier this year. With Steveson not returning, Akgul could emerge victorious in the 125-kilogram class.

—Kennedy Blades, United States. The dynamic 20-year-old beat Tokyo Olympic silver medalist Adeline Gray at the U.S. trials and is competing in the women's 76-kilogram freestyle division.

—Helen Maroulis, United States. She is aiming to become the first American women’s wrestler to win three Olympic medals. She won gold in 2016 and bronze in Tokyo and is competing in the 57-kilogram division in Paris.

—Who will be the men’s heavyweight champion in freestyle? Steveson won at age 21, then left for pro wrestling and didn't participate in the U.S. Olympic Trials. That leaves the class wide open.

—New faces: None of the three U.S. gold medalists from Tokyo return. Taylor lost to Aaron Brooks in the trials and Tamyra Mensah-Stock and Steveson did not attempt to qualify.

—Zhan Beleniuk, a member of Ukraine’s Parliament, won gold in Tokyo and is aiming to win again.