Norwich City midfielder David Fox has joined the Reds on loan and is available for selection for the match at Leicester City tomorrow.
The 29-year-old arrived at Oakwell on Friday on a 93-day loan, the day after goalkeeper Jack Butland was brought in on the same deal.
Fox began his career at Manchester United then spent three years at Blackpool where he made more than 100 appearances and helped them to promotion from League One.
Paul Lambert signed him for Colchester United in 2009 then again for Norwich a year later. He has played 72 games for the Canaries and helped them to promotion to the Premier League in 2011.
He will bolster a Barnsley midfield that has been criticised for lacking creativity and quality this season.