Seeing the odds given by bookies is more profitable for Sporting which has lower odds than Dortmund,it is possible because Sporting will play as the home team in the first leg but Amorim's departure has made Sporting's performance decline drastically in the UCL because they have not won since Amorim left so I prefer Dortmund who will most likely qualify for the last 16, because I saw Dortmund win their last game with the new coach.
Are you really sure of your choice? While the odds provided by the bookie have told us that the match will not be beneficial for Dortmund. Amorim may not be with Sporting anymore but look at how he looks when competing at home that is able to give a draw or even defeat Dortmund. And you also have to know if in this play off round it will require 2 legs to get a ticket to the last 16. So I speculate if in the first leg Sporting match will win with a thin score. And in the second leg Dortmund will beat Sporting with a higher aggregate score.