He told the Croydon Guardian: "I think he (Smith) might have been the lad that was recommended to us but I am alright for left-backs now."
Meanwhile Wakefield Town defender Marc Roberts is currently on trial at Selhurst Park and could possibly earn himself a deal with Palace.
Warnock added: "He is in training with us for a week and we are getting a look at him.
"We look at a lot of lads though and we've also got two others on trial as somebody asked us to have a look at them and it doesn't cost us anything."



