"I've always been honest," he said. "I have had a great time here and that is why I have made it clear that, at the end of the season, I might have a decision to make. So there is nothing to hide. That's the situation.
"They (Middle East clubs) have been knocking on my door for the past couple of years and I have been turning them down because I am still ambitious. I want to be involved in the best league in the world.
"You never know what the future may bring. I am not getting any younger, so I might decide to end my career there."