Barnsley duo David Perkins and John Stones have agreed new deals with the Championship club.
30-year-old midfielder Perkins has been handed a two-year deal, whilst teenage defender Stones has signed a three-year contract.
Perkins joined Barnsley last summer from Colchester and has become an integral part of Keith Hill's squad.
He had a year left on his current deal but has now extended that by a further 12 months.
Stones is an England youth international who has come through the club's acclaimed Academy having made his debut earlier this year.