LONDON—Newly-crowned French Open champion Barbora Krejcikova made a breezy start in her singles main draw debut at Wimbledon on Tuesday, beating teenager Clara Tauson 6-3 6-2 to reach the second round. Two weeks after winning both the singles and doubles titles on the red clay of Roland Garros, the Czech edged the 18-year-old Dane on the big points to improve her winning run to 13 matches. The newest member of the Grand Slam winners club, 14th seed Krejcikova won her first WTA singles title in Strasbourg in the leadup to the claycourt major. After a rain-enforced delay, the 25-year-old converted three of her five break-point opportunities to wrap up the match in 70 minutes. Former world number one Angelique Kerber, Ash Barty and Venus Williams were other Grand Slam winners in the women’s draw who advanced to the second round on another rain-hit day at the grasscourt major. Grand Slam …