Mexico's Cesar Ramirez returns the ball to Nicolas Almagro of Spain during the men's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Pedro Mera) 

Nicolas Almagro of Spain serves during the men's single match against Mexico's Cesar Ramirez on the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Pedro Mera) 

Nicolas Almagro of Spain returns the ball to Mexico's Cesar Ramirez during the men's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Pedro Mera) 

Mexico's Cesar Ramirez returns the ball to Nicolas Almagro of Spain during the men's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Pedro Mera) 

Grace Min of U.S. returns the ball to Francesca Schiavone of Italy during the women's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Bao Feifei) 

Grace Min of U.S. reacts during the women's single match for the second day of the Mexican Open Tennis Tournament against Francesca Schiavone of Italy, held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Bao Feifei) 

Nicolas Almagro of Spain reacts during the men's single match for the second day of the Mexican Open Tennis Tournament against Mexico's Cesar Ramirez, held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Pedro Mera) 

Grace Min of U.S. returns the ball to Francesca Schiavone of Italy during the women's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Bao Feifei) 

France's Pauline Parmentier returns the ball to Maria Teresa Torro Flor of Spain during the women's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Bao Feifei) 

Nicolas Almagro of Spain returns the ball to Mexico's Cesar Ramirez during the men's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Pedro Mera) 

Mexico's Cesar Ramirez returns the ball to Nicolas Almagro of Spain during the men's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Pedro Mera) 

Nicolas Almagro of Spain returns the ball to Mexico's Cesar Ramirez during the men's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Pedro Mera) 

France's Pauline Parmentier returns the ball to Maria Teresa Torro Flor of Spain during the women's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Bao Feifei) 

France's Pauline Parmentier returns the ball to Maria Teresa Torro Flor of Spain during the women's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Bao Feifei) 

Francesca Schiavone of Italy returns the ball to Grace Min of U.S. during the women's single match for the second day of the Mexican Open Tennis Tournament held in Acapulco, State of Guerrero, Mexico, on Feb. 26, 2013. (Xinhua/Bao Feifei)