RSL: Signed using Targeted Allocation Money on Feb. 7, 2018.
2018: In his first season with RSL, Kreilach led the team in goals with 15 goals (12 regular season, 3 post season) to win the club's 2018 Golden Boot. Kreilach featured in 22 matches for the club while making 31 starts while providing 9 assists in total across 2,784 minutes played.
INTERNATIONAL: Kreilach appeared for the Croatian U-19 and U-21 National Teams in 2008 and 2010, respectively.
OUTSIDE MLS: Kreilach made his final appearance for Union Berlin on Feb. 5, logging 71 minutes in a 1-1 draw against Arminia Bielefeld. He played the last five seasons for Union Berlin in the German second division, scoring 33 goals in 147 matches, highlighted by a 12-goal season in 32 matches in 2015-16. He has two goals in 16 matches this season. Prior to his move to Germany, he played for Rijeka in the Croatian first division, making his debut at 18 years old in the 2007-08 season, playing 128 matches in six seasons while scoring 19 goals. He was the club’s top goalscorer in the 2011-12 season with nine goals.