However, unless manager Mark Wotte can inspire his young side to a remarkable turnaround in fortunes, any penalty could prove academic for the club's survival chances this season.
Southampton are still two points adrift of safety with five games left and seem set to be plying their trade in League One - if at all - come August.
Teenage winger Kieron Cadogan scored on his debut to earn Crystal Palace a point in a 1-1 draw against Coventry.
The latest graduate from Palace's prolific academy had only been on the pitch for 12 minutes when he pounced on a defensive mistake, rounded City goalkeeper Keiren Westwood and tucked the ball into the net.Late goals from John Joe O'Toole and Arturo Lupoli decided a typically feisty derby, although there was still time for Barnsley to miss a penalty and score a consolation through Daniel Bogdanovic.
O'Toole, on loan from Watford, bundled home his first goal for the club in the 81st minute to keep the Blades' automatic promotion hopes alive and Arsenal striker Lupoli slid home the clincher six minutes later.