IRISH youth international Will Hondermarck has signed a new two-year deal with the Reds.
The 21-year-old joined Barnsley last September and played ten games for the club in the Championship.
He has extended his stay at Oakwell for an additional two years.
He said: “I’m delighted.
“It’s been in talks for a while now, last season was obviously my breakout season with the first team.
“Getting it over the line now and being able to have that security is a big thing for me.”