ROTTERDAM, NETHERLANDS - FEBRUARY 14: Ernests Gulbis of Latvia during Day 4 of the ABN AMRO World Tennis Tournament at Rotterdam Ahoy on February 14, 2019 in Rotterdam, Netherlands. (Photo by Jean Catuffe/Getty Images)
ROTTERDAM, NETHERLANDS - FEBRUARY 14: Ernests Gulbis of Latvia during Day 4 of the ABN AMRO World Tennis Tournament at Rotterdam Ahoy on February 14, 2019 in Rotterdam, Netherlands. (Photo by Jean Catuffe/Getty Images)