Swansea City manager Brendan Rodgers felt his side were denied a clear penalty during the 1-1 draw against Queens Park Rangers.
Danny Graham had given Swansea a first half lead before Jamie Mackie equalised on 58 minutes.
But referee Lee Probert refused to award a penalty after Graham fell under the challenge of Armand Traore.
"I have had the chance to see it from a few angles and it was a definite penalty," said Rodgers.
"We worked the space really well, Luke Moore got into a wonderful position, Nathan Dyer has done well, Danny has bent his run superbly, got a touch and Traore has made a foul.
"Normally with the referee so close that's a penalty.
"I thought it summed up Lee's performance which was interesting to say the least.
"He is a good lad on the circuit, trying to get experience, but he was very inconsistent right the way through, which did not help us."
Rodgers' opposite number Neil Warnock was also left frustrated by the performance of the referee.
Warnock felt Probert made a mistake in not disallowing Swansea's first-half goal, claiming Graham had handled the ball in the build-up.
And the Rangers boss also supported Rodgers' claims of a penalty, saying: "It definitely looked a penalty from where we were.
"I think that was the most stonewall penalty you will see in the latter stages, the most certain penalty ever."
Swansea remain 14th in the Premier League but manager Rodgers felt it was a case of two points dropped against QPR.
And Rodgers faces an anxious wait to discover the extent of the ankle injury which forced Angel Rangel off the field in the second half.
The Spaniard, who recently returned from an ankle problem, needed lengthy treatment after being following Clint Hill's first-half tackle.
"I thought it was two points dropped with our form here this season," said the Northern Irishman,
"We showed some fantastic spells in the first half which had us in front, which we deserved, but we never really got going in the second half.
"We knew Angel was struggling to put weight on his ankle which meant we had to restructure our midfield.
"I thought Kemy Agustien was excellent filling in at right back but we lost a bit of balance as a result.
"We will assess Angel's injury. It was a result of the challenge but it was the same ankle he has had a problem with."