LONDON — Rising star Victoria Mboko will miss Wimbledon because of a knee injury sustained during a match at Queen’s Club, where the Canadian teenager was in the spotlight as the doubles partner of Serena Williams. The 19-year-old Mboko, who is ranked No. 9, slipped and appeared to strain her knee during a match against Karolina Pliskova at the HSBC Championships. She retired from the match and later pulled out of the doubles event.