One the best defensive players in the NFL says Kyler Murray is going to KILL it in his rookie season ... 'cause Chandler Jones tells TMZ Sports the QB is "going to shock the world!"
"You'll see," Chandler says.
The Cardinals took the Heisman Trophy winner with the No. 1 overall pick last April ... but some in the NFL world have questions about his future because the guy is just 5'10", 207 pounds.
But, when we got Chandler out at L.A. Live on Wednesday .