Murray,34, lost world title challenges to Felix Sturm, Sergio Martinez and Gennady Golovkin before moving up to Super-Middleweight.
Then after stepping up a division he fell short against Arthur Abraham but feels that he has still got what it takes to become a world champion.
But to get back in the reckoning for a title crack he faces a tough test against American Gabriel Rosado himself a two time world title challenger in Liverpool on April 22.
Martin Murray has lost four world title bouts
The 34-year-old wants to get back in the hunt for another world title shot
“I know that I still have a World title in me. Middleweight was all tied up with Golovkin but Super Middleweight was more so I moved up.
“Having gone up there and fought the best up there, they are big guys and I feel that I am better placed at Middleweight.
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“Golovkin still has most of the belts but he might have to move up to get the fights he wants and that could open things up once more.
“People have always written me off. I've moved to Super-Middleweight, I thought I should have won the title against Abraham, looking back I left it too close to call,” he said.