Ozil has been heavily criticised by the country's press in recent weeks, with even manager Jose Mourinho suggesting the German "lacks quality".
United are reported be keeping tabs on the 23-year-old, but Ozil does not want to leave the Bernabeu.
He told German newspaper Bild: "When you play for Real Madrid you cannot think of anything else. I know nothing and I have no reason to leave."
Ozil lost his starting place for Real's 4-1 Champions League win in Ajax last week but returned against Barcelona in the first Clasico of the Primera Division season.
He earned much praise for his performance, which was capped with an exquisite throughball to tee up Cristiano Ronaldo for his second goal in the 2-2 draw at the Nou Camp on Sunday.
But despite largely struggling for form this season, the former Werder Bremen midfielder insists he is not motivated by his critics.
"I don't have to prove anything to anyone," he said. "I do not play football to prove something to someone, but because I enjoy football."
adidas has added some color to the Predator line with this new colorway. Released on May 17. Be the first to own a pair.
The push for more color on their cleats, adidas has added the infrared colorway to the adiZero f50 Line.
The Juventus jersey for the 2013/14 was released earlier this week. Be the first to wear the colors of the Old Lady.
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.
Ajax has released their away soccer jersey for the 2013/14 season. Get in the Gear.
The Liverpool 2013/14 soccer jersey is available for pre-order. The Reds are eager to compete for silver next season.
Borussia Dortmund hears Wembley Calling and are headed to London for the Champions League final.
Bayern Munich are kings of Germany and hope to be crowned kings of Europe at Wembley later this month!
One of the top soccer cleats for control the Nike CTR360 will not let you down on the field in tight spaces.
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.