The centre-back is set to leave the La Liga side, with Rangers reportedly close to securing his services for around £2 million.
Rayo Vallecano were also interested, with both clubs having reportedly agreed terms.
Mendy was then left to decide whether to remain in Spain or move to Scotland.
It was claimed that he was eager for a move to Ibrox.
However, Real Betis director Manu Fajardo has confirmed there are two offers from interested clubs.
Fajardo said: “As of today, we have two formal offers from two major clubs.
“The player’s willingness will be important.
“We hope to finalise the deal in the next few hours.”
This suggests that any deal could be concluded soon, with Mendy’s preference potentially playing a key role in the final decision.