Catalans coach Steve McNamara was disappointed with a number of refereeing decisions in their loss to Wigan.
The Dragons were in control of the game in the first half and led 15-0 at the break thanks to tries from Benjamin Jullien and David Mead.
However, the Warriors fought back in the second half and scored 28 unanswered points to run-out 32-23 winners in Perpignan.
And McNamara has slammed some of the decisions made by referee Liam Moore.
He said: “We did some dumb things ourselves, but I’m telling you, it’s as if Catalans shouldn’t be beating Wigan.
“I don’t think we touched the ball for 15 minutes. Some of it was for our reasons, some for the penalties given against us.
“It’s getting very difficult, penalties are so influential in the game. It’s (happening) every week and it’s killing us.”
But McNamara thought Wigan skipper Sean O’Loughlin, who he made England captain when Lions coach, was the difference between the two sides.
He added: “Sean O’Loughlin was incredible.
“If it wasn’t for Sean O’Loughlin, I don’t think we’d be having this type of press conference now.”
Next up for Catalans is a trip to the Mend-A-Hose Jungle on Saturday as they face Castleford Tigers, 3:30pm kick-off.