Barnsley were sitting bottom of League One earlier in the season although the Tykes found form in 2016 to have a shot of promotion through the play-offs.
The Yorkshire side won 4-1 at Wigan in their last game, with Ladbrokes offering 7/5 that they beat Walsall on Saturday evening to set up a potential Wembley final against Bradford or Millwall.
The Saddlers finished third in League One this season and enjoyed an emphatic 5-0 win at Vale Park on Sunday, with the Midlands side 19/10 with William Hill to claim another away victory. They have the talented Tom Bradshaw who is among the favourites at 6/1 (Paddy Power) to score first.
Back the score draw in this one at 15/4 with 888Sport
Compare odds and bet at the best prices on over 100 markets on the game