MELBOURNE, Australia — Iga Swiatek’s one-month suspension for failing a drug test will not be appealed by the World Anti-Doping Agency because her explanation “is plausible,” WADA announced on Monday. WADA released its decision just minutes after Swiatek, a five-time Grand Slam champion and former No. 1-ranked women’s tennis player, sealed a 6-0, 6-1 victory