At international level, Pjaca represented Croatia at UEFA Euro 2016 and at the 2018 FIFA World Cup, reaching the final of the latter tournament and making an appearance in it.

[6] In summer 2014, Pjaca was signed by reigning Croatian First Football League champions Dinamo Zagreb for a transfer fee believed to be in the region of €1 million.

[10] Pjaca also played the full match as Dinamo beat RNK Split in the 2015 Croatian Football Cup Final on penalties.

On 20 July 2016, Pjaca himself confirmed that the 2016–17 UEFA Champions League second qualifying round tie against Macedonian club Vardar would be his last for Dinamo.

After being sidelined through injury for almost three months, in January 2017, he returned to action with two half-hour-long substitute appearances against Atalanta in the Coppa Italia and Fiorentina in Serie A.

[17] After returning from a long term ACL injury, on 4 January 2018, it was announced that Pjaca had joined German club Schalke 04 on loan without an option to buy until the end of the 2017–18 season, for €800,000, plus an additional €200,000 in possible bonuses.

[18][19][20][21] At the moment German giants were chasing a place that takes them to the UEFA Champions League and coach Tedesco saw Marko as a player who can help them achieve their goals.

Pjaca made his senior international debut for Croatia on 4 September 2014, replacing Mateo Kovačić for the last 12 minutes of a 2–0 friendly win over Cyprus at the Stadion Aldo Drosina in Pula.

[31] On 3 September 2015, he made his competitive debut for the national team in the UEFA Euro 2016 qualifying match against Azerbaijan, starting and playing the entire fixture, which ended in a 0–0 draw.

[35][36] Pjaca took a seat on the substitutes' bench for the clash with Portugal in the next round, only to be brought on late in extra time with just ten minutes of the additional 30 remaining.

Being introduced as a substitute, he brought some much-needed attacking impetus to the side, completing three dribbles against a previously impenetrable Portugal defence.