Reds 2 (Vaz Te 29, 65)
Swansea 4 (Rangel 30, Graham 46, 89, Dyer 54)
A century ago the Reds embarked on a quest for FA Cup Glory, but any hopes of a repeat were dashed when a ruthless Swansea City side arrived in South Yorkshire, with just two changes to their side that enjoyed a comprehensive victory over Aston Villa in the top flight.
There were flashes of brilliance from Keith Hill's troops - whose endeavour and determination certainly matched those of Arthur Fairclough's charges 100 years ago, but it wasn't to be as Brendan Rodgers' clinical side proved why they deserve their crack alongside the Premier League's elite.
The man in form for Barnsley - Ricardo Vaz Te - once again took advantage of an advantage, as he did so the last time at Oakwell against Leeds. Craig Davies was hacked down as the Reds broke, but the Portuguese forward capitalised and carried the ball 40 yards before unleashing an unstoppable strike from the edge of the area and into Tremmel's top-left corner.
This Barnsley lead only lasted one minute, and as Keith Hill admitted afterwards, it was down to our own undoing. Perkins' pass was misplaced and Dyer capitalised to slip in Rangel who tucked into the bottom corner on the half-hour mark.
After the break the Swans' record signing, Danny Graham, proved just why Brendan Rodgers paid so much money for his services. Although the Reds did back off to give him time, nothing can be taken away from his finish - curling into Steele's top corner from almost 30 yards.
By this time the Swans' were indeed flying, Nathan Dyer tucked home a third when Wayne Routledge wriggled into the box down the left before pulling back for his team-mate on 54 minutes.
It may have seemed the Reds' heads had dropped, but the endeavour and commitment from Hill's troops was, as it has been all season, unquestionable and Ricardo Vaz Te's&nbsp;twelfth goal of the season brought a wave of renewed belief. Danny Drinkwater whipped in an inviting free-kick, and Vaz Te pounced to haul his side back into the tie.
Heads up. Belief up. The atmosphere was up. And when youngster Reuben Noble-Lazarus - making only his second appearance since August - connected with Vaz Te's delivery on the volley, it seemed certain to fly in but instead flew just wide.
As often is the case when going for an equaliser, particularly against higher league opposition, doors can be left open. Danny Graham swept home for his brace with only a minute of normal time remaining to seal the victory.
Premier League survival is certainly the objective for the Swans, but the respect shown to Hill's troops was evident in such a strong side on display at Oakwell and it needed to be. The cliché of 'concentrating on the league' is a cliché for a reason - it's true. Now with no distractions and less risk of burnout, Barnsley can look to develop even more in what has already been a more-than-impressive campaign.
Reds:Steele, Hassell (Wiseman 57), McEveley, Foster, Davies, Done (Noble-Lazarus 52), Perkins (Gray 57), McNulty, Addison, Drinkwater, Vaz Te.
Subs:Preece, Edwards, A. Taylor, Digby.
Swansea City:Tremmell, Williams, N. Taylor, Britton, Orlandi (Sigurdsson 59), Graham, Dyer (Sinclair 78), Routledge, Monk, Rangel, Agustien (Allen 66).
Subs: Moreira, Lita, Moore, Bessone.
Assistant Referees:Walliam Smallwood &amp; Andy Scregg.
Fourth Official:Mark Brown