Barnsley boss Mark Robins was delighted with Keiran Trippier's debut last night.
Trippier was signed on a month's loan from Manchester City ahead of Tuesday's 2-1 defeat at Boro and started the match at right-back.
He was replaced late in the second half by Iain Hume as Barnsley pushed for an equaliser, but Robins was happy with the 19-year-old's display.
"I thought Keiran came in and had an outstanding debut," Robins told the club's official website.
"I thought he did really well in what was a below-par first-half performance."