Atleti need to reinforce their defense in January. They play with 3 CBs, but only have four in the first team. Out of those 4, three are bums. Felipe and Savic cost them in every game. Gimenez has also stalled/regressed heavily, still as limited on the ball and is already 26. Hermoso is the best of the 4, but he has a very specific role and still makes some mistakes. Not to mention Simeone's attempt to play Kondogbia at CB, lol. The quality of their centerbacks is a far cry from the days of Miranda and Godin.