Second seed Marin Cilic paid the price for a poor serving display at Indian Wells on Tuesday as he suffered defeat at the hands of Philipp Kohlschreiber.
The 29-year old Croat has made the finals of two of the last three grand slams, but he looked well off the pace in California as the 31st seed triumphed 6-4, 6-4.
Cilic fired down five aces, but landed just over 50 percent of his first serves in as Kohlschreiber needed a single break in each set to seal the victory. It was his seventh win in 11 career meetings with CIlic.
Kohlschreiber moves into the fourth round where he will face unseeded Frenchman Pierre-Hugues Herbert, who progressed when compatriot Gael Monfils retired in the second set with a back injury while trailing 6-2, 3-1.
Also through to round four were Argentina’s Juan Martin del Potro after a 6-4, 7-6(7-3) win over David Ferrer (29), while Milos Raonic also went through following a three set victory over Portugal’s Joao Sousa 7-5, 4-6, 6-2.
Serving notice: Milos Raonic is back in the round of 16 of a @ATPWorldTour Masters 1000 for the first time since Rome last year.
— BNP Paribas Open (@BNPPARIBASOPEN) March 13, 2018
Del Potro will face fellow Argentine Leonardo Mayer in round four after he overcame Taro Daniel, conqueror of Novak Djokovic, in straight sets 6-4, 6-1.