While Kipchoge will not be in London to try and regain his crown as he recovers following his exploits in Japan, the 36-year-old will no doubt be watching on from afar and backing countryman Evans Chebet. 2018 ultra boost Norrie certainly could not have done any more in the opening set, but a wayward end to the second proved the turning point and eighth seed Ruud was the better player in the decider. 2018 ultra boost On Thursday, 23-time Grand Slam champion Williams became the latest in a growing number of players and organisations expressing concern about the welfare of Peng. 2018 ultra boost "I was prepared very well before the Olympics and just two weeks before I had a hamstring injury, that was a big pressure for me. Otherwise I have prepared well and I am feeling confident to run on Sunday. 2018 ultra boost