Not many players, at least bigger name loans get sent out with a recall agreement, especially when there are fee's or wages are paid. Sporting certainly didn't get him for loan.
The fact is the last two seasons he's been quite poor for us, last season at times when he did play he was terrible, and he looked no better during pre season. When you have a front line of Falcao, Januzaj, Di Maria, Mata, Van Persie, Rooney, Young, Valencia, you can see why there was space to send him on loan.
Don't think at the time Nani was sent at loan, anyone could imagine he would be the answer to our attacking problems, or he would start playing like he has.