Spanish striker Mark Guio is contemplating leaving Chelsea during the upcoming winter transfer window, after struggling with limited participation since the start of the season, amid interest from Spanish club Real Betis in signing him, according to the website 'Fichajes'.

The report clarified that Guio, who is 19 years old, is experiencing frustration due to his absence from Chelsea's starting lineup, despite returning from a short loan period with Sunderland, where he hoped to gain more opportunities to play. However, the English club's signing of players like Joao Pedro and Liam Delap has pushed him down the pecking order among the team's forwards.

The source indicated that Guio is considering the option of returning to Sunderland to regain confidence and readiness, although the closest destination may be the Spanish league through Real Betis, which has shown interest in acquiring the player on loan in January.

Chelsea's stance remains crucial in the future of the young striker, as the club still considers him one of its promising assets, and it is unlikely that they will part with him except under specific conditions, most notably that any loan must be without an option to buy to maintain control over his future career.

Mark Guio is facing a pivotal period in his career, as he seeks to secure regular playing opportunities to prove his abilities, whether by continuing in England or through a temporary move to La Liga.