As he narrows down his squad for the 2020 Tokyo Games, men's head coach Hajime Moriyasu says he is looking for players with "mental and physical toughness" to help Japan win its first-ever Olympic soccer gold medal.

In a recent interview with Kyodo News, the 51-year-old manager said the prospective squad was making strong progress toward the games, where men's soccer will be contested by under-23 teams containing a limited number of overage players.

After losing 2-0 to Colombia in November with a team headlined by Samurai Blue regulars, Japan's under-22 squad gave a more positive showing against Jamaica on Saturday, winning 9-0 using a side drawn mostly from the J-League.