(CNN) Despite his last-minute requests and hopes, former Trump campaign adviser George Papadopoulos will still have to start his 14-day prison sentence on Monday for lying to federal investigators in the Russia probe.

Papadopoulos had asked a federal judge twice in the last 10 days to pause his sentence. The federal Bureau of Prisons has him set to surrender at a correctional camp in Wisconsin tomorrow.

The judge who sentenced him, however, denied both of his requests on Sunday, saying Papadopoulos hadn't filed any court appeals within the window he was allowed and gave a firm nod that the office of special counsel, which prosecuted Papadopoulos, has acted correctly.

Papadopoulos gave up much of his rights to appeal under his plea agreement, which he cut with the special counsel's office last year.

He hadn't used any legal tools he still had at hand in his recent court requests, the judge, Randy Moss of the US District Court for the District of Columbia, added.

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