The 2019 ATP Tour Finals continues today and the half-way stage will be completed after today’s two Group A matches between top seed Nadal and fourth seed Medvedev and sixth seed Tsitsipas and seventh seed and defending champion Zverev. Fifth seed Thiem is leading the way at the halfway stage after winning his two opening Group B matches against eighth seed Berrettini and second seed Djokovic yesterday. Whoever wins today’s Group A match between Tsitsipas and Zverev will emerge as the Group A leader.