Andy Stevenson presents coverage of the opening play on day 12 of the Grand Slam tournament from the All England Club, including the start of the men's singles semi-finals, plus various doubles and wheelchair semi-finals. Veronika Kudermetova and Elise Mertens booked their place in the ladies' doubles final on the 12th day last year with a 3-6, 6-0, 6-3 victory over Olivia Gadecki and Desirae Krawczyk