More female coaches are needed on the WTA and ATP Tours, says Spain’s former Wimbledon champion Conchita Martinez, who on Thursday was named as tournament director for this year’s Billie Jean Cup in Seville.

The disparity between male and female coaches in professional tennis is huge with only 13 of the top 200 women players coached by a woman, according to the WTA.

Martinez, who beat Martina Navratilova in the 1994 Wimbledon final, has bucked the trend since retiring.

She was part of compatriot Garbine Muguruza’s coaching team when the Spaniard won the 2017 Wimbledon title, worked as coach to Czech Karolina Pliskova and even captained Spain’s Davis Cup team from 2015 to 2017. Former Wimbledon champion French Amelie Mauresmo did have a stint as coach to three-time Grand Slam champion Andy Murray.

“I think why not have a women coaching a man? It’s possible,” she said.