WTA chair apologises to Jessica Pegula after airing of ‘diva’ comment.

The Women’s Tennis Association (WTA) on Thursday said it takes “full responsibility” for failing to inform players about active microphones on ​practice courts after private comments by Jessica Pegula about ‌Mirra Andreeva were broadcast during a livestream ahead of the season-ending WTA Finals.

Practice sessions at Indian Wells, California, were streamed on the WTA’s YouTube ​channel this week before the tournament begins on Sunday, ​with microphones capturing a conversation between world number five ⁠Pegula and her coach Mark Knowles.

In remarks that later circulated ​on social media, the American described French Open champion Andreeva as “a ​diva”, and said she “needs to be humbled”. She also suggested coach Conchita Martinez encouraged the 19-year-old’s behaviour.

“The WTA takes full responsibility for failing to inform ​our players and their teams that microphones, in place to ​give fans a livestream of the players’ practice, were active on the ‌courts ⁠at the WTA Finals,” the governing body said in a statement.

The WTA subsequently removed recordings of Wednesday’s practice sessions from YouTube, although clips of the exchange had already been widely shared online.

A ​representative for Pegula ​told The ⁠Athletic that the American had “absolutely no idea” her conversation was being livestreamed and never expected a ​private discussion during practice to be made public. ​The representative ⁠added that Pegula had contacted those involved to apologise.

Pegula, a member of the WTA Players’ Council, also praised Andreeva in the conversation, ⁠describing ​the world number three as “wonderful” and “smart”.

The ​WTA Finals, being staged at Indian Wells for the first time, run through November ​15.