23:36 CET - In some of the day's late results, Ekaterina Alexandrova (28) beat Qinwen Zheng (20) 5-7, 6-4, 6-2. Alexandrova will next play top-seed Iga Swiatek (21).
On the men's side, Daniel Altmaier (24) advanced after beating Yannick Hanfmann (31) 7-6(3), 6-3.
In the day's final match in Madrid, Alejandro Davidovich Fokina (23) is leading Holger Rune (20).
21:40 CET - Carlos Alcaraz (19) has beaten Grigor Dimitrov (31) 6-2, 7-5 in Madrid to set up a fourth-round encounter with Alexander Zverev (26).
21:07 CET - Our pick of the women's action in Spain came from Daria Kasatkina's (25) win over Lesia Tsurenko (33). The match ended 6-4, 6-2 in the Russian's favour and included this great rally.
21:05 CET - Our men's Flash Moment of a thrilling day in Madrid came from the gruelling encounter between Roberto Bautista-Agut (35) and Karen Khachanov (26). Ultimately, the Russian won the affair.
21:00 CET - 17th seed Borna Coric (26) has defeated 12th seed Hubert Hurkacz (26) 7-6(3), 6-3 to advance to the fourth round in Madrid.
19:45 CET - Barbora Krejcikova (27), ranked 12th in the world, is through to the next round having beaten Wang Xiyu (22), winning 6-4, 6-1.
18:38 CET - Top seed Iga Swiatek (21) has marched on in Madrid, beating Bernarda Pera (28) quite comfortably 6-3, 6-2.
16:41 CET - Women's third seed Jessica Pegula (29) has advanced to the next round, winning 6-4, 7-6 against Marie Bouzkova (24).
On the men's side, Alexander Zverev (26) lost just one game on his way to a dominant victory over Hugo Grenier (27).
14:43 CET - Andrey Rublev (25), the fifth seed and one of the favourites in Madrid, has beaten Yoshihitio Nishioka (27) with relative ease, winning 6-2, 7-5.
14:15 CET - Roberto Bautista-Agut (35) performed well but couldn't quite claim victory on home turf, losing 7-4, 4-6, 6-3 to tenth seed Karen Khachanov (26).
13:00 CET - The first matches of the day have been completed and they've gone the way most would have expected, with world number eight Daria Kasatkina (25) beating Lesia Tsurenko (33), winning 6-4, 6-2, and 18th seed Martina Trevisan (29) winning 7-6, 6-1 against Alycia Parks (22).
11:50 CET - Play has started in Madrid and it promises to be another action-packed day with plenty of stars hitting the clay.
Saturday saw quite a few top seeds falling out of the tournament as well as a few favourites advancing - you can read all about yesterday's drama here.
Stay tuned to the Tracker throughout today for all the key results, highlights and more.
07:25 CET - Hello and welcome to coverage of the first Sunday of the Madrid Open. A tough test awaits Carlos Alcaraz (19) in the form of Grigor Dimitrov (31), while Iga Swiatek (21) will face Bernarda Pera (28).
You can stay up to date with those matches and the 14 others that take place today right here.
