Cologne Tennis : Bautista Agut, Zverev Matches In Opening Round
Second seed Roberto Bautista Agut got his indoors campaign off to a strong start, downing French Veteran gilles Simon 6-4, 7-6 in cologne.
The Spanish World Number 13 will next face Hubert Hurkacz of Poland in the quarter-finals.
In the other matches, third seeded Canadian Felix Auger-Aliassime Eased past Henri Laaksonen 6-4, 6-1 of Switzerland, while Marin Cilic was sent packing by Spaniard Alejandro Davidovich Fokina 3-6, 7-6, 6-2.
Earlier, top seeded Alexander Zverev began his campaign with a convincing 6-4, 6-1 victory over Spanish Veteran Fernando Verdasco.
The German World Number seven wrapped up the match in just over an hour and will next meet south African Lloyd Harris for a spot in the semi-finals.