This is one of those situations when you have that feeling that bookmakers wont you to take some money from your local betting center.
I would like you to play this one as a single because mixing it with other odds and losing is just a waste of money.
Dinamo played Champions Leage group stage last year and broke the record with 22 conceded goals. This time they have been given, lets say, easier sides and they hope not to embarrass themselves as last time. PSG, Porto and Dynamo Kyev probably see Dinamo Zagreb as a club that could make a difference in points for them if they dont win and they wil all concider this as a serious job.
Dinamo went trough qualifications with Ludogorec ( important to mention that they were losing on away goal in second lag until scored a 98. minute of regular time, although forth refferre given 5 minutes of added time ), Sheriff and Maribor.
In domestic championship Dinamo has HNL (domestic League organisation) on their side and although they played poorly, they succeded to stay in first postition ofter 8 games with 6 wins and 2 draws. They have been given a penalty or a red card for opposite team almost in every game so i wouldn take this results seriously as wouldnt anybody who is aware of this situation in Cratian football. Porto on the other side is favourite for winning domestic championship and securing first place in this group. They will not have much difficulties and there would be no problem to dragg this one in handicap zone if they geather enough motivation. Must mention leaving of their best player Hulk to Zenit for 50 M euros. (Tomislav Sokota, ex Dinamo player said that Dinamo will miss Badelj more than Porto will miss Hulk).
All in all, if Porto starts this game motivated they could win it easily with 2-3 goals difference.