There were no shocks at the Stuttgart Open on Tuesday as Marin Cilic and both seeds advanced.
The grass-court swing got under way with four main-draw matches but little drama in Germany.
One-time Wimbledon finalist Cilic staved off the only two break points he faced against wildcard Rudolf Molleker and seized all five opportunities of his own.
A 7-5 6-3 win was enough to set up a second-round meeting with fifth seed Nikoloz Basilashvili, who beat Dustin Brown in the top half of the draw.
The defeated pair were the only home hopefuls in action, while number six seed Ugo Humbert and Lloyd Harris each also progressed.
