Roger Federer continued his smooth progress at the French Open on Friday with a straightforward 6-4, 6-3, 6-2 defeat of Bosnian Damir Dzumhur to reach the fourth round.
Former world number one Garbine Muguruza was beaten 7-5, 6-4 by Aryna Sabalenka in the China Open second round on Tuesday while an ailing Jelena Ostapenko lost 6-0, 6-0 to Wang Qiang.
Cilic's booming serve lacked its usual accuracy and Germany's Kohlschreiber was able to control long rallies, pushing the towering Croatian around the court with pinpoint groundstrokes en route to a quick victory.
Photos from the US Open matches played on Monday
IMAGES of the all the action from Day 2 of the Australian Open played at Melbourne Park on Tuesday
IMAGES from Day 3 of the US Open in New York on Wednesday.
Images from Day 7 of the 2019 French Open in Paris on Saturday.
IMAGES from Australian Open matches played at Melbourne Park on Friday
Bernard Tomic is set to sit out the Australian Open after Tennis Australia (TA) decided not to award him a wildcard to the main draw, the organisers said on Thursday.
Some of the big moments of the sporting world from 2010-2019!