According to journalist Claudia Helena Hernández, Millonarios will not sign Harold Santiago Mosquera for 2026. She stated that she spoke with the player, who said he has a pre-agreement with another club. One of the reasons Millonarios ruled out the player is his high salary demands. Given his good form, these demands mean only a few clubs in the FPC with notable economic power could sign him. Millonarios inquired about the player's conditions a few weeks ago and sent a very good offer, but that offer was reportedly surpassed by other interested parties.

According to Futbolred, Harold Santiago Mosquera is of interest to Millonarios. Mosquera was a youth player at the club and was a champion there in 2017. This possibility is considered the least advanced at the moment.

Futbolred reports that Harold Santiago Mosquera could return to Millonarios, the club where he started his professional career, as his contract with Santa Fe is ending. The attacker is reportedly a key option for Millonarios, particularly after difficulties in the club's attempt to sign Michael Barrios led them to consider other targets.