Before USL: Rešetar made his professional debut at the age of 17 while playing for Inter Zapresic in the 1. HNL – Croatia’s top division – earning a start against Cibalia on Sept. 23, 2017. He went on to make nine appearances for Zapresic in the 2017-18 season, scoring his first professional goal in a 3-3 draw with Slaven Belupo on April 19, 2018.
Rešetar moved to Dinamo Zagreb II ahead of the 2018-19 campaign, making six appearances in the 2. HNL and one in the UEFA Youth League for Dinamo’s Under-19 squad. In the 2019-20 season, Rešetar played in seven games for Dinamo Zagreb II, tallying the game-winning assist against NK Kustosija Zagreb on Oct. 20, 2019.
International: Rešetar has made 10 appearances for Croatia’s Under-19 team, scoring three goals – two against India on Sept. 4, 2018 and another against Slovenia four days later in a set of friendly matches. His most recent Under-19 cap came in a friendly against Serbia on Feb. 12, 2019.