2014 has been Marin Cilic 's most successful year . 26-year-old won 9 titles , including first major Goran , Croatian , in 2014 . `` I think I am capable of making it to the top and being able to win big events . '' Croatian has had to wrestle back credibility following failed doping test in April 2013 . Big server says his time out of the game has contributed to his fantastic year .
2014 has been Marin Cilic 's most successful year . 26-year-old won 9 titles , including first major Goran , Croatian , in 2014 . Croatian has had to wrestle back credibility following failed doping test in April 2013 . Big server says his time out of the game has contributed to his fantastic year .