Modric, 26, has been chased by the Primera Liga champions for most of the summer and a deal appears imminent.
Spurs chairman Daniel Levy had steadfastly refused to sell the Croatia international unless their valuation was met.
But it appears Tottenham will now accept a reduced fee for the former Dinamo Zagreb starlet who seems intent on leaving White Hart Lane.
"You read many things in the media but from the information that I have, Luka will move to Real Madrid for sure," Mamic told 24sata.
"I've heard it's almost done, so I don't have any doubts Luka will play for Real Madrid next season.
"It is just a question of when the official announcement will be."
The adidas Nitrocharge is the most talked about new cleat in years. It was released on May 15 and will take your pitch by storm.
The Liverpool 2013/14 soccer jersey is available for pre-order. The Reds are eager to compete for silver next season.
The push for more color on their cleats, adidas has added the infrared colorway to the adiZero f50 Line.
The new PUMA evoSPEED 1.2 FG. A great new soccer cleat with classic look and first time for PUMA to be on the cleat.
Bayern Munich are kings of Germany and hope to be crowned kings of Europe at Wembley later this month!
adidas has added some color to the Predator line with this new colorway. Released on May 17. Be the first to own a pair.
One of the top soccer cleats for control the Nike CTR360 will not let you down on the field in tight spaces.
The Juventus jersey for the 2013/14 was released earlier this week. Be the first to wear the colors of the Old Lady.
Ajax has released their away soccer jersey for the 2013/14 season. Get in the Gear.
Borussia Dortmund hears Wembley Calling and are headed to London for the Champions League final.