17:02 CET - Argentina have moved into the last eight of the Davis Cup after securing a straight-sets doubles win over the Netherlands that secured them a 3-0 win in the tie.
14:52 CET - Holger Rune has put Denmark 1-0 up in their tie with Spain, claiming a 7-5, 6-3 win over Pablo Carreno-Busta.
11:17 CET - Belgium have moved into a 2-0 lead in their tie against Australia after Zizou Bergs battled to an impressive 7-6(4), 6-4 victory over Jordan Thompson.
Meanwhile, Germany secured a fourth successive win over Japan, with teenager Justin Engel proving too strong for Rei Sakamoto, 6-3, 6-7(2), 10-7.
08:50 CET - Good morning and welcome to our coverage of Saturday's tennis!
We've got a busy schedule of Davis Cup qualifiers to look forward to today, as well as WTA semi-final action in Sao Paulo and Guadalajara a little later this evening.
One early result to bring you from this morning, and it's a surprise one, with Belgium's Raphael Collignon getting the better of world number eight Alex De Minaur in three sets, 7-5, 3-6, 6-3.