There was a first-round exit at the Estoril Open for fifth seed Alexander Bublik.
Alexander Bublik’s status as the Estoril Open’s fifth seed meant little to Pedro Martinez as the Spaniard romped to victory.
Qualifier Martinez needed just 53 minutes to see off a player ranked 57 spots above him, triumphing 6-3 6-0 to reach the second round.
He will now face Cameron Norrie, a 6-1 6-3 winner over home hope Joao Sousa in Portugal.
Marin Cilic, himself seeded sixth, might have feared going the same way as Bublik after a chastening second set against 17-year-old Carlos Alcaraz.
But the Croatian held his nerve and got the job done in a 6-3 1-6 6-4 success.
How Marin Cilic got a very good win over Carlos Alcaraz here in Estoril. pic.twitter.com/VLK4yI6cIi
— Millennium #EstorilOpen (@EstorilOpen) April 27, 2021
Finally, fellow seed Albert Ramos-Vinolas was relatively untroubled in overcoming compatriot Fernando Verdasco 6-3 6-3 in an all-Spanish clash.
At the BMW Open, Jan-Lennard Struff secured safe passage to the second round on home soil in Munich.
The German saw off lucky loser Andrej Martin 6-4 6-3 and the seventh seed now face Dominik Koepfer, who downed three-time champion Philipp Kohlschreiber 4-6 6-4 6-3.
Elsewhere in the draw, Nikoloz Basilashvili, seeded fifth, defeated Thiago Monteiro, while the sixth-seeded Dusan Lajovic suffered a straight-sets loss to world number 127 Mackenzie McDonald.