Alan Pardew believes his side can still progress in the Uefa Cup, despite their first round defeat to Palermo on Thursday.
Andrea Caracciolo's strike proved the difference at Upton Park, but the Hammers boss believes his side were lacked a bit of luck on the night.
"I was disappointed with the referee, there seemed to be more tackles let go than in the Premiership, but this tie is not over yet," Pardew told ITV4.
"Against a top-eight team in Serie A, we did okay. In terms of what we've seen we have nothing to be frightened of."
Pardew also gave European debuts to high-profile signings Carlos Tevez and Javier Mascherano, and he was pleased with their performances.
"They have shown their individual qualities and it's now about harnessing it," Pardew added.
"We haven't really nailed the team down as we would want and we have to do that now."
Club Captain Nigel Reo-Coker is also backing his team to turn it around and believes the side are developing into a better unit with each game that comes.
"There's a lot of hope for the second leg," he told ITV4. "There are a lot of positives, we had a lot of opportunities and I'm confident."