Stepančić wasn't able to win the Champions League with PSG, losing the 2017 final to Vardar and the 2018 semifinal to Nantes.

As a boy, Stepančić played football until the 2nd grade of primary school when his cousin, a handball coach, took him to training.

The list also included Dario Šarić, Blanka Vlašić, Robert Kišerlovski, Marin Čilić and Sandra Perković.

[5] In 2013, Stepančić joined the national team for the World Cup held in Spain, winning the bronze medal.

In the same year, Stepančić started professional studies to become a handball coach at the Faculty of Kinesiology in Split.

He was the top scorer in the match Croatia lost to Poland in the quarter finals, thus being knocked out of the tournament.

In 2020, Stepančić took part with the Croatian national team to the 2020 European Men's Handball Championship.

In 2020, Jabuka TV reported that "the great right winger could miss the World Cup in Egypt in January next year due to his long recovery.

Stepančić's absence due to injury, together with those of Igor Karačić and Marin Šego, put coach Červar and the Croatian national team in trouble.

The couple first got married in front of a registrar, and in 2016 repeated their marriage vows in a church in Zagreb, on the occasion of the baptism of their nine-month-old son Jakov.