If we refer to the odds given by the bookmaker, of course the home team has a greater chance of winning the match because Dortmund itself has been in very poor condition and you can see that in the Bundesliga through the results of their matches recently. So the small odds on Sporting Cp are proof that the home team also has a chance that exceeds Dortmund even though both of them might score goals in the match. And I also think that their match will be quite fierce in the near future.
In this play off I have speculation if in the first leg Sporting will win and in the second leg Dortmund will try to score a higher aggregate score to qualify for the next round. Sporting has a great opportunity to compete in its own home and the mentality of players is more confident. Whereas the experienced team who is experienced to try to survive as strong as possible not to conceded large amounts. The biggest opportunity is only sporting at this time but a draw needs to be considered. Because if Dortmund succeeds in using the defensive strategy, a draw can occur with a score of 1-1.