Career
Krušlin was also playing for the Croatia"s Under-20 national team and has participated at the Junior European Championships in Greece 2006 and Madrid 2007. Filip Krušlin started his professional career in 2007-2008 season, touted as a hot prospect for Cibona"s future. He was recognised as a young talent while he played for younger selections in KK Zrinjevac and KK Rudeš.
His debut for Cibona came against Široki in Adriatic League season 2007-2008.
He played a total of 8 minutes and managed to gather up 4 points by getting a three pointer and one free throw scored. After that he played nine more games for Cibona in Adriatic League.
His season highlight was 7 points and 1 rebound in 10 minutes spent on court against KK Crvena Zvezda. At the start of 2008-2009 season Krušlin was offered a loan move to aid his development since Cibona has already signed five more guards this season, he would hardly get a chance to play.
He then moved on loan to another club from Zagreb, KK Dubrava.
After that he left Cibona, and after losing the fall of 2009 to injury, signed for KK Dubrovnik. He spent seasons at KK Bosna and KK Zabok before moving, in 2012 to KK Split. On April 3, 2014, Krušlin signed a contract with Cibona.