US Open live blog: Bartoli joins Q&A during Gauff vs Andreeva

Sky Sports is running a live US Open blog and Marion Bartoli is joining for a Q&A during the Gauff versus Andreeva match, which follows Rybakina's appearance on court. Fans can send questions in while the quarter-final action unfolds at Flushing Meadows. Bartoli, the 2013 Wimbledon champion, is on hand to break down the play as it happens.