KEY PLAYER
The striker has scored 17 goals in his last 19 League One appearances.
His strike against Peterborough on Saturday took him level with Julian Alsop as the club’s all-time leading EFL scorer so he will set a new record if he finds the net at Oakwell.
Barnsley appear to have been warded off a move for Duff’s former talisman after Cheltenham reportedly slapped a £500,000 price tag on him.
May spent three years in South Yorkshire at Doncaster Rovers, scoring ten goals in 92 games, having previously been a non-league striker.