The Reds could have striker Michael Chopra on their books before their next match on Saturday
He was was not involved in Newcastle United's Premiership opening game at the weekend and Barnsley want his loan spell to begin sooner rather than later.
The move has been delayed because of the outbreak of conjunctivitis and injuries at St. James's.
The clubs exchanged calls over the weekend and midweek talks are planned.
Barnsley have no first team match until Saturday's trip to Walsall although the reserves' fixtures begin tomorrow at Bradford.