Cahill is Matlock's leading scorer, with 14 goals since joining the Gladiators last September and would command a fee.
Matlock's joint manager Phil Brown told the Matlock Mercury; "Mark Robins contacted us saying they would like to take Tom on, and to be fair there's been a number of clubs showing interest in him."
"But Rotherham have shown a keen interest in him and we need to sit down and see what's in Tom's best interests and Matlock Town's.
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