Amorim admits he's counting on the Portugal defender for the long-term.
"He's very powerful," said Amorim. "We have to rotate him sometimes because he looks like he is always fresh but it's not like that. He's not a machine.
"I think he plays better on the right and we will manage to put him also on the right, but he's a very good player, very powerful that can play both sides.
"Nowadays, a player that can play both sides is like...it's perfect because you can put him in different positions.
"I expect the same as you saw in the last year - a great player that can help the team and is really a team player.
"You can feel it in every play, the way he lives the game, so it's very important for us."
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