Borna Coric has announced that he is currently assessing his options after splitting with coach Miles Maclagan.
Since the pair joined forces at the end of 2015, Coric has reached two finals on the ATP Tour and recently made it through to the last eight at the Cincinnati Open.
However, despite his impressive run at the Masters Series event, the world number 41 has said that he has 'parted ways' with Maclagan, who has previously coached Andy Murray.
The 19-year-old said: "I would like to thank Miles for his hard work and dedication. I will look into my options at the moment and see what the best solutions are going forward."
Coric is currently recovering from a knee injury as he looks to return to fitness ahead of Croatia's Davis Cup semi-final with France.