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Germany's Sandra Gal was just one of the golfers spotted wearing masks to guard against air pollution at the Reignwood LPGA Classic in Beijing Sunday. GOH CHAI HIN/AFP/Getty Images
Mariajo Uribe of Colombia was another to take to the fairways wearing a mask during the final round of play of China's first LPGA event. Etienne Oliveau/Getty Images
Swedish tennis player Robert Lindstedt, pictured here at the French Open in May, found the air quality in Beijing untenable, describing it on his blog as "a disaster" and questioning whether he would return to the event. Clive Brunskill/Getty Images
Spectators at the China Open also took to wearing the masks courtside over the weekend, such as this couple watching one of the women's semi-finals Saturday. MARK RALSTON/AFP/Getty Images
Masks were seen in the crowd Sunday also. This couple were spotted watching Novak Djokovic down Rafael Nadal in the men's final. Feng Li/Getty Images
