Munich, Germany, 30 April 2014 | PA-AP

Australian veteran Lleyton Hewitt has gone down in the first round of the Munich ATP event on Tuesday to Spanish qualifier Albert Ramos.

The 33-year-old took the first set but was broken five times in the next two as he fell 6-7(6) 6-1 6-0 to the world No.117 from Barcelona.

Fifth seed Philipp Kohlschreiber – the 2007 and 2012 champion – was the day’s biggest casualty as he was beaten 7-5 2-6 6-4 by Uzbek Denis Istomin in front of his home supporters.

The 55th-ranked Istomin saved 11 of 14 break points to win in just over two hours, setting up a second-round meeting with Hewitt’s compatriot Marinko Matosevic.

Matosevic and Istomin will open proceedings on centre court on Wednesday.