The Reds are edged out by the odd goal in five against West Bromwich Albion here at Oakwell.
In what was a really entertaining affair under the lights here at Oakwell, it was the visiting Baggies who picked up the result but Reds Head Coach, Daniel Stendel will have seen lots to be pleased about, particularly the opening 45 minutes in which his side played with real verve and intensity.
A couple of early corners for the Reds ended with Brad Potts dragging an effort wide of the post on four minutes and then Barnsley did take a deserved lead as from another inswinging Alex Mowatt corner kick, Lloyd Isgrove rose above WBA 'keeper Jonathan Bond to head the ball in.
It was 2-0 to the Reds on 10 minutes, as Kieffer Moore this time powered a firm header in off the inside of the post following a terrific team move which resulted in Dani Pinillos putting over the perfect cross for Moore to take advantage of.
Former Red, Jay Rodriguez was denied inside the six yard box when Ethan Pinnock slid in to block the goalbound strike on 20 minutes, but it was Stendel's side who were bossing proceedings, creating the majority of chances.
Mamadou Thiam put over a pinpoint cross at pace which Tom Bradshaw headed inches over the bar, and then Moore dragged a volley just wide after another flowing Reds attack with Potts driving the team forward from central midfield.
But right on the stroke of half time the away side pulled a goal back when a Chris Brunt free kick from out wide was met by Hal Robson-Kanu whose header was too powerful for Reds stopper Jack Walton to keep out at the near post.
HALF TIME: Reds 2-1 WBA
The visitors made the same sort of impact straight after half time when James Morrison capitalised on a mix-up in the Reds box to smash high past Walton to level the match at 2-2.
And just five minutes later it was the complete turnaround for Albion as a cross from wide was turned into his own goal by Reds defender, Dimitri Cavaré.
Former Reds loanee Harvey Barnes came on for his Baggies debut just after the hour and he soon forced Walton into a fine low save.
On 71 minutes, Potts burst into the centre of the park, then let fly from 30 yards with a stinging effort which Bond superbly turned behind for a corner.
The game petered out a little as substitutes were introduced but the Reds could have levelled in the last minute but Moore fired just over the crossbar after a great Barnsley counter attack.
FULL TIME: Reds 2-3 WBA
Reds XI: Walton, Cavaré (McCarthy), Lindsay (Jackson), Pinnock, Pinillos (Williams), Isgrove (Adeboyejo), Potts (Bird), Mowatt (McGeehan), Thiam (Moncur), Moore, Bradshaw.