By ESPNSTAR.com staff
Mourinho had been linked with a move away from Real in recent times and was reportedly identified by oil-rich Paris Saint-Germain as the perfect candidate to take over the helms of the French outfit from current manager Carlo Ancelotti.
The Portuguese manager had previously refused to comment on his future, increasing speculation that he was planning to leave the club once the current season ends.
However, Karanka does not believe that Mourinho will leave the club any time soon and revealed the self-proclaimed "Special One" was still as dedicated to Real.
"Mourinho shows his strength on and off the pitch and cannot be forever reacting to what is said elsewhere," Karanka was quoted as saying by the official Real website.
"I've been here with him for two and a half years and if we listened to all the rumours, life just wouldn't be worth living.
"The coach is as strong as you can get. The owner of PSG has stated that they have their coach and Mourinho is focused on his own day-to-day activities."
For now, Los Blancos will have to focus on their upcoming clash at the Nuevo Jose Zorilla Stadium against Real Valladolid, a team Karanka believes will give his side a stern test.
"Valladolid are complicated opponents," Karanka mused.
"They are enjoying a good season, but we're just concentrating on winning.
"They are playing a sound game with a trainer who can transmit his idea of football. The only thing we have to think about is winning those three points."
Karanka also backed winger Cristiano Ronaldo for the Ballon d'Or and praised the 27-year-old's professionalism on the pitch.
"Professionals like him play an important role on the pitch," Karanka added of Ronaldo.
"If they score, great, and if they don't, then they are team players. He is a real professional."
Real have not made a good start to the season, picking up only 29 points from 14 games so far and find themselves 11 points behind current league leaders Barcelona.