Bulgarian Grigor Dimitrov

IMAGE: Greece's Stefanos Tsitsipas celebrates victory over Germany's Alexander Zverev in the semi-finals of the Monte Carlo Masters, at Monte-Carlo Country Club, on Saturday. Photograph: Denis Balibouse/Reuters Defending champion Stefanos…

IMAGE: Rafael Nadal celebrates a point during his fourth round match against Reilly Opelka during the BNP Paribas Open at the Indian Wells Tennis Garden, on Wednesday. Photograph: Matthew Stockman/Getty Images Rafael Nadal toppled…