I have written the analysis of the fight here http://www.infobeto.com/prognostika-stoiximatos-podosfero-greece-football-bets/atromitos-olympiakos-piraeus
What I will add is that the two previous matches have ended in a tie. Besides, both teams have very good defenses and even Atromitos knows how to keep the Olympiacos away. Also with 0-0 I expect the two teams to be cautious and I will take the draw in the first half