Olympiacos' triumph against Arsenal within the Champions League was not a surprise to Dinamo Zagreb boss Zoran Mamic.
Dinamo Zagreb coach Zoran Mamic was not surprised by Olympiacos' victory more than Arsenal in the Champions League.
Arsene Wenger's side had been beaten 2-1 in Zagreb inside the opening game just before succumbing to the Greek outfit 3-2 on home soil.
Dinamo and Olympiacos meet on Tuesday inside a group led by Bayern Munich, with Mamic hailing the top quality of this week's guests.
"It was not such a surprise that Olympiacos beat Arsenal in their final game - they play within the Champions League every year and are doing an awesome job," he said.
"We are expecting a very tough match against top-quality opponents. We're looking forward to it, even though, as we desire to show our best and we would like to win.
"We respect Olympiacos and are aware of their strengths, but football will not be predictable.
"We understand how we want to play - equivalent to how we did when we beat Arsenal - but obtaining an concept and being able to execute it are to quite different things."