Mejias has found himself fourth in line at the Riverside Stadium this season behind compatriot Victor Valdes, Brad Guzan and Dimi Konstantopoulos, and has been a frustrated by-stander for the entire campaign to date. Indeed, he made the last of his 17 senior appearances in Boro’s 2-1 FA Cup third round defeat by Burnley on January 9 last year, and Segunda Division Rayo have offered him the opportunity to play some football.