Ospreys coach John Humphreys admitted his disappointment after the 17-14 Heineken Cup defeat to Benetton Treviso in Italy.
The Welsh region bowed out of Europe's elite club competition by surrendering a 14-3 lead - the Italian underdogs racking up their first Pool 2 victory.
Humphreys said afterwards: "It is disappointing to lose and let it slip like that but sometimes that's the way it goes. We ran out of petrol. We gave our all but just couldn't hang on.
"I'm not going to criticise the young players, they have been great through the competition for us. We didn't get the result but they stepped up and delivered again."
Humphreys chose to focus on the positives - pointing out the positive contributions made by Sam Lewis, Lloyd Peers and new Wales squad member James King.
The forwards coach added: "I thought James was outstanding. He took a bang to the shoulder, which left him with a stinger, but he just didn't stop working. His lineout performance was excellent. Sam Lewis and Lloyd Peers also produced big displays."
Treviso head coach Franco Smith said: "We knew the match wasn't important for qualification but we wanted to reward all our efforts in this competition and our supporters.
"It was a chance to give some players time in the competition and they stepped up. It's a very proud moment and a big occasion for everyone at the club. Now we can build from here in the league season."