While Manchester United No1 David de Gea, Chelsea keeper Thibaut Courtois and Athletic Bilbao's Kepa Azzirabalaga have all featured prominently in the press as potential Real signings, Don Balon says Italian teen Donnarumma is also on Perez's shopping list.
Perez made a serious play for Donnarumma as he fell into contract dispute with Milan over the summer. A deal was discussed, before he chose to re-sign with the Rossoneri after the U21 Euros.
If Milan fail to qualify for the Champions League this season, Donarrumma's agent Mino Raiola will again do the rounds of clubs drumming up interest.
For the moment, Kepa is Perez's top priority, however if a deal cannot be done, he will turn to Donnarumma as an alternative.