WIMBLEDON, England — Former Grand Slam champions Naomi Osaka, Caroline Wozniacki, Angelique Kerber and Emma Raducanu have all been awarded wild cards for Wimbledon. The grass-court tournament starts on July 1. Osaka — a four-time major champion and former No. 1 player — and three-time Grand Slam winner Kerber returned from maternity leave at the start of this season. [time-brightcove not-tgx=”true”] Currently ranked 113th, Osaka was the only player to take a set from top-ranked Iga Swiatek at the French Open and followed that up with a quarterfinal spot last week in ’s-Hertogenbosch, a warm-up event for Wimbledon. Former U.S.