Chelsea allowed the player to leave the club on loan this season, with the 22-year-old spending the year with Serie A side AC Milan. However, it is understood that long-term, the player has no future in London and that the club are happy for him to move to pastures new this summer.
Pasalic is well known for his versatility, he can play either as a destroyer or as a playmaker and measures 6'1" so has no problems with physicality.
Betis are prepared to pay between €2m and €3m for the Croatian, who has also received an offer from Galatasaray.