The Real legend is available after leaving Mexico's Monterrey in December.
Ramos is fronting a group in talks to buy Sevilla, though still wants to play out the season. A return to the pitch with Sevilla has been ruled out by the club's top brass.
However, a move to Real Madrid has also been raised.
Former Real Mallorca and Osasuna striker Walter Pandiani said on El Cafelito: "Perhaps bringing back a former Madrid player would have been good.
"If I were the coach, I would have brought back Sergio Ramos, even if he played less, for the day-to-day, for the dressing room. To defend (Alvaro) Arbeloa's proposal in a different way.
"I would have called Sergio Ramos to help me, to be on my side, to defend my proposal."
After the clip was posted to social media, among those to 'like' it included Ramos, who later posted a video on his Instagram stories with the Real Madrid anthem.