Midfielder Jack Thomas has been recalled from his loan spell at Conference North club Boston United.
The 21-year-old has made eight appearances for the Pilgrims since joining in mid-September.
Meanwhile, the news will immediately bolster the Stags' selection options.
It is intended, however, for the 21-year-old to soon head out on loan again to earn vital match minutes at senior level on a regular basis, once Stags' first team squad is at full strength.