Marin Cilic is fondly called as Mrnja by friends, family and close relatives. He was born to Zdenko and Koviljka, both retirees, in Medjugorje, BIH on September 28, 1988. Third among the siblings, he has three brothers namely: Vinko, Goran, and Mike.
Marin started playing tennis at age seven together with his cousin Tanja who loved going to Germany to play with him. This paid off when Marin won four international junior championship titles including the Roland Garros. He became number 2 in junior in the World after Donald Young in 2005. He also competed at the quarterfinals in three junior Grand Slams singles category. In the doubles division, he earned three junior titles and joined in five finals.
Marin likes to play soccer as well and looks up to AC Milan and Croatia. He also looks up to tennis players Goran Ivanisevic and Ivan Ljubicic, his countrymen. He finds his backhand drive his strongest and likes all types of courts to play on. As he is coached by fellow Croat Boris Vallejo and physically trained by Ljubo Antekolovic, he established a Davis Cup record of 2-3 singles in four ties.
In 2004, he earned his career points at the Zagreb Futures event in the second round. He was teamed with Ivanisevic but lost the game in the first round. He was the wild card at Umag in 2005 to make his ATP debut. He won his first Futures Career title in Vinkovci, Croatia.
Marin became the young Croat who finished 2007 in the top 100 by combining his success in the Challenger and ATP level play. He successfully reached the semifinals and the quarterfinals in two more tournaments. In the first few months of the year after, he already gathered a 7-3 points and reached the semifinals in Chennai. This enabled him to join the fourth round of the Australian Open. His position then continued to climb from number 71 to number 39 in the ATP rankings.
Marin’s first Grand Slam quarterfinal appearance happened in 2009 US Open when he was able to win over Andy Murray but eventually lost against Juan Martin del Potro. The following year, Marin enjoyed having his first major semifinal and then had his breakthrough into the Top 10.
Since then, he has been steadily performing and becoming a force to be reckoned with. However, it was in 2013 that he failed the drug tests and was banned for a time. He has, however, made a comeback and is gracing the top of the ranks once more.
Currently, Marin has a career record of 449-237 with 17 career titles to his name. He currently is seated at the highest rank he achieved, which is at No. 3. He reached the spot on January 2018, and has maintained it so far. Marin has 1 Grand Slam title, which is the 2014 US Open in singles. For the other Grand Slam events, he has performed well but mostly reached the final round of the Australian Open and Wimbledon, and the quarterfinals of the French Open.