Russian international Viktor Onopko has agreed to join La Liga side Rayo Vallecano on a one-year loan deal.

The 32-year-old, who has been with second division side Real Oviedo since 1996, was signed at the request of Rayo’s new coach Fernando Vazquez – a former Oviedo manager .

Rayo open the new season with a home game against Alaves on Sunday.