He has a long take - back on both wings , and the top - spin he produces on his groundstrokes allows him to both attack and defend well .
Thiem often uses heavy , penetrating groundstrokes to construct points and hit winners or outlast his opponents .
Thiem has a long take - back on both wings , and the top - spin Thiem produces on Thiem 's groundstrokes allows him to both attack and defend well .
Thiem often uses heavy , penetrating groundstrokes to construct points and hit winners or outlast his opponents .