WOMEN’S tennis great Martina Navratilova has said she was saddened by Naomi Osaka's decision to withdraw from the French Open following the controversy over her decision to boycott media obligations. Four-time Grand Slam champion Osaka announced her decision on Monday, a day after being fined $15,000 for not attending a post-match media conference and threatened with expulsion after her first-round win. The Japanese player, who cited the negative impact on her mental wellbeing caused by facing journalists at post-match press conferences as the reason for her boycott, wrote on Twitter that she had suffered from depression since 2018. Martina Navratilova…