Hamburg Open: Martinez upsets sixth seed Arnaldi in opening round

Spaniard Pedro Martinez reached the second round of the Hamburg Open by beating Italian Matteo Arnaldi, the No 6 seed, 7-6 (4), 6-1 at the Rothenbaum Tennis Center on Monday.

Martinez, ranked No 49, will face French qualifier Ugo Blanchet next.

Hamburg ATP 500, other first-round matches (Rothenbaum Tennis Center, clay, EUR 1,891,995):

• Francisco Cerundolo (4) beat Francisco Comesana (LL): 7-5, 6-4
• Alexander Shevchenko beat Rudolf Molleker (WC): 6-4, 4-6, 6-4, 6-4
• Laslo Djere beat Zizou Bergs: 6-3, 7-6 (4)
• Maximilian Marterer (WC) beat SoonWoo Kwon: 6-4, 6-7 (6), 7-5
• Ugo Blanchet beat Alexei Popyrin: 4-6, 7-6 (6), 6-2
• Flavio Cobolli beat Daniel Altmaier: 6-4, 6-7 (6), 6-3
• Alexander Zverev vs. Jesper De Jong
• Fabian Marozsan vs. Holger Rune
• Facundo Diaz Acosta vs. Hugo Gaston
• Dominik Koepfer vs. Sebastian Baez
• Marco Trungelliti vs. Sebastian Ofner
• Thiago Seyboth Wild vs. Zhizhen Zhang
• Felipe Meligeni Alves vs. Dusan Lajovic
• Arthur Fils vs. Jaume Munar
• Luciano Darderi vs. Lorenzo Sonego