The former Real Madrid star is having a hit and miss time in the English Premier League and reports have suggested that Atleti could offer him the chance to return to his homeland.
Sevilla have also been linked but have described the move as being 'very, very complicated, and it remains to be seen whether Atleti will pursue a deal.
Simeone was coy about the possibility when quizzed about it following Wednesday's 1-1 draw with Girona in the Copa del Rey.
"The only thing I'm thinking about is the upcoming match against Levante," Simeone told reporters. "I don't speak about players that aren't with us, only those that are.
"I can't confirm or deny anything because coaches wait to see what the club can do.
"Some players want more minutes, some could be sold by the club, some could arrive. We need to wait until January 31."