Slovakia international Dusan Svento is impressing Derby County boss Billy Davies during trials.
Davies said of the Slavia Prague player: "It is difficult for the players to come in but they showed one or two flashes, particularly the lad Svento with his pace and ability in the outside left position.
"We will have a chat to his representatives and see what the next step is.
"I think taking another look at him is the next step, for sure."