HALLE, GERMANY - JUNE 21: Karen Khachanov of Russia plays a forehand in his match against Matteo Berrettini of Italy during day 5 of the Noventi Open at Gerry Weber Stadium on June 21, 2019 in Halle, Germany. (Photo by Thomas F. Starke/Getty Images)
HALLE, GERMANY - JUNE 21: Karen Khachanov of Russia plays a forehand in his match against Matteo Berrettini of Italy during day 5 of the Noventi Open at Gerry Weber Stadium on June 21, 2019 in Halle, Germany. (Photo by Thomas F. Starke/Getty Images)