As the Southwest Londoners prepare for the visit of Ruiz' former club FC Twente tomorrow night, Dutchman Jol has revealed that he knew the Costa Rican could not play when he signed him but the player didn't.
"It was a problem for him, because he thought he could play but he couldn't," said Jol.
"It was an advantage for us because if he had have known before it might have been a problem. He said just after signing, 'I thought I could play', but I said, 'No, you can't.'
"Bryan was pretty disgusted with the situation. He played a few games before and he got injured before that and hoped he would play, but that is reality and the rules."