Former Real Madrid striker Predrag Mijatovic believes that the Spanish side will regret selling Gonzalo Higuain to Napoli.
The Argentina international completed his move to the Serie A side last week for a fee in the region of £32m on five-year deal.
Mijatovic told Cadena COPE: "When Real Madrid purchased Higuain, he was seen as a kid with great talent. He was settled in Spain and did well in Spanish football.
"He was key to winning the league title under [Fabio] Capello and has grown a lot at Madrid. It is not easy to find a player that scores 25-30 goals a season."
The 25-year-old scored 18 goals in 41 appearances for Madrid last season.