Cape Town - Everton left-back Bryan Oviedo has suffered a new injury setback with the news that he fractured a bone in his foot during training this week.
The Costa Rica international was on the verge of making his comeback from a hamstring strain he sustained against BSC Young Boys in the Europa League on February 19.
Oviedo has managed just six Premier League appearances for the Toffees this season, having only returned to action in September last year following eight months out with a broken leg.
The 25-year-old will now play no further part in the Merseysiders' season as they look to finish strongly in their final four league fixtures, against Aston Villa, Sunderland, West Ham and Tottenham.
Everton boss Roberto Martinez confirmed that Oviedo, who missed his country's World Cup campaign in Brazil, will likely sit out their Gold Cup challenge in July.
Martinez said in his press conference on Thursday: "We had a really disappointing situation with Bryan Oviedo in training. He has fractured his fifth metatarsal, which is incredible bad luck.
"He was in a great moment of form and looking forward to getting back into the squad and finishing the season playing.
"It was a very unfortunate action on his own and he is going to be out for the rest of the season. He was trying to get on the ball and his ankle rolled in a very awkward position.
"It's not the leg that he had his breakage - it's his other leg - so it is a completely different injury It's very unfortunate.
"He's going to be out for the rest of the season and miss being with Costa Rica at the Gold Cup."