By Matthew Neschis Derrick Henry has debunked rumours about joining the Dallas Cowboys. The Cowboys are on the hunt for a new running back after Tony Pollard left to sign a three-year, $24million (£18.9m) contract with the Tennessee Titans. This move seemed to pave the way for the Cowboys to chase Henry, but he says they never even got in touch. “The Cowboys never called at all,” Henry, 30, said during an appearance on the Schein on Sports podcast. “That’s where I stay in the offseason. I’m kind of on the back end of my career and that’s a great organisation. It would’ve been a great opportuni…