Goalkeeper: Jan Oblak
Before Liverpool's signing of Alisson, Oblak was the Alisson of this transfer season. Jan Oblak had been performing exceptionally well with the team. He kept most clean sheets in the league and was the cornerstone of the best defence in the Spanish league, conceding just 22 goals whilst keeping 19 clean sheets. Of course Simeone's formation and tactics are a factor in this defensive masterpiece, but Oblak's contribution has been commendable, attracting various clubs.
The Rojiblancos have signed Antonio Adan from Real Betis but only as a back up to the Slovenian. Adan kept 9 clean sheets last season with a fragile defense infront of him. Per foxsports, Oblak made 106 saves and Adan made 83 saves during last season.
Oblak is a hot property and was targetted by major clubs before the rise of Allison and Buffon's decision to join PSG. It would not be a surprise if Oblak is a target for Atleti's neighbors, Real Madrid, but it would be interesting to see whether Real will be willing to anger Atletico again by going after their player.