Borna Coric will begin working with new coach Thomas Johansson in Nice, the week before Roland Garros.

The 18-year-old Croat is the youngest player in the ATP Top 100 at No. 55, but has had an up and down season. Coric qualified for Dubai in February and reached the semifinals, beating Andy Murray 6-1, 6-3 before a 6-2, 6-1 loss to Roger Federer. He also qualified for Indian Wells, where he advanced to the second round (losing to Bernard Tomic). However, his overall record entering this week is just 8-11.

A number of players believe that Coric is one of most impressive young players on tour. Coric, who upset Rafael Nadal last fall in Basel, was working with Croatian Davis Cup captain Zeljko Krajan.

"Thomas has been around on the ATP Tour for many years and has the experience and knowledge to help me achieve my goals,” Coric said.  
Johansson, once ranked as high as No. 7, unexpectedly won the Australian Open in 2002. The 40-year-old Swede worked with Caroline Wozniacki as a part-time coach during a brief partnership in 2012.  
"Borna has been one of the leaders of the new generation we all have been waiting for in the men's tennis,” Johansson said. “His energy and tennis capabilities are impeccable and sometimes I forget he is only 18 years old. We will work on all aspects of his game and he will hopefully continue improving in the years to follow.”