Milan will face Girona in San Siro in January. Then Girona can be a more dangerous team with the transfers. They should never underestimate the Spanish team in the fight they will have against them. Milan managed to get 3 points from Real Madrid by doing the hard work. I think they should get 6 points in their remaining matches and be in the top 8 teams.
I think it's not about underestimating a certain team when the next match takes place in January, because all teams will definitely make changes to their playing style and to their line-up of players who are obtained through the transfer market. So it can not only happen to Girona, but also to Milan because any team will definitely continue to monitor the players available in the January transfer market because if the price is affordable enough, of course every team will try to get them if the player has a good career in the previous team.