Based on the available odds, a draw is least likely to occur. You can choose both teams to score or Dortmund to win, that's what I'm betting on for the match. Even though Dortmund is not the favorite, Dortmund is a team that has more experience in the Champions League than Sporting. Not underestimating Sporting, but in my opinion favoring Sporting in their home game to win seems like a risk of losing.
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.