Sporting Lisbon coach Paulo Bento has told winger Simon Vukcevic to buck up his ideas.
Vukcevic is upset after starting preseason games on the bench and Bento snapped: "Nobody has guarantees that they'll play. All players can be useful, but it's up to them. It depends on their attitude and behaviour, especially in difficult times."
Vukcevic's agent has confirmed the interest of Manchester City, Blackburn and Bolton in the winger.