The difference between Benfica and Sporting is 3 points, but Benfica has one more game in hand, if they manage to win this game, they will be able to have an equal number of points with Sporting. And it seems that Sporting has already improved their game, after the departure of Amorim they had a difficult period, but it seems that now they are ready to fight again. They will play each other at the very end of the season, before that time everything can change.
to add that the next 2 games of Benfica will be easy games, so I predict that Benfica will not lose points in the next two games, but in the third game, they will play against Porto, this will be a big obstacle for Benfica mainly because it will be an away game, and Benfica has been a weak team away from home. But if Benfica wins, then they can have a good chance of winning the title, it would be enough for Sporting to lose points when they play against Braga on April 7th