He came from Spanish Second Division side Tenerife in the summer, but there were concerns he could struggle with the "iffy weather" on Tyneside, having spent his entire career with the sun on his back.
We will only find out the answer to that question this coming winter, with the player already confirming he can't wait to see the snow.
"See the snow" and actually PLAY in it, could be two different situations, but time will tell.
Will he be happy with being substitute? That normally gets a reaction from the player.
The 21-year-old is in Spain hoping to pick up two honours for his performances last season, having been nominated by the LFP (Liga De Futbol) for 'best breakthrough player' and for the Second Division’s best attacking midfielder.
Perez scored four goals in a reserve-team outing against Carlisle United earlier this month, but there are two ways of looking at that:-
1) Carlisle were bottom of the entire Football League and were trying out trial players, none of which were offered contracts.
2) You can only play what is put in front of you, and the kid hit the net four times.
Alan Pardew (talking to the Chronicle): “He can create moments.
“He doesn’t really understand the Premier League yet and he’s not quite right physically ready.
“But he’s got fantastic technique and he created chances for us.”