Dustin Johnson of the United States holds up the trophy after the final round of the PGA Tour Genesis Open golf tournament at Riviera Country Club in Los Angeles, the United States, Feb. 19, 2017. Dustin Johnson won the Genesis Open. With his win at the Genesis Open on Sunday, Dustin Johnson rose to No. 1 in the Official World Golf Rankings for the first time in his career.(Xinhua/Zhao Hanrong)