But there could be a reason for the north London side not to stand in their way.
If the St James' Park outfit recruit Berahino, will they have enough room for both him and Perez? And would they be taking the West Brom man purely to cover for the Spaniard's departure?
Should they sign Berahino, the door could open for Tottenham to move for Perez...
On the face of it, then, it could be a straight choice between Berahino and Perez for Tottenham (if all the transfer talk is true).
There is nothing wrong with the West Brom man, of course. The north London side are clearly fans and he brings goals, youth and creativity.
But Newcastle's Perez may well come cheaper and offers just as much in terms of work rate and skill.
Both Perez and Berahino remain linked to several clubs and neither may move. Yet, if Newcastle can prise the latter away from West Brom, Spurs won't suffer if they can prise Perez away from St James' Park.