Wigan Athletic head coach Roberto Martinez was angry that Charles N'Zogbia had a first-half effort ruled out during Saturday's 2-1 Premier League loss at Blackburn Rovers.
The Spaniard was left to lament the 39th minute decision by referee Kevin Friend after he blew up for a foul on Morten Gamst Pedersen.
With the scores all-square at Ewood Park at the time of the incident, Martinez has spoken of his dismay, highlighting the Friend's call as a major turning point.
"(It's) really disappointing on the key moment of the game for me, is the goal disallowed from Charles in the first half," he complained.
"In games like these the first goal makes a huge difference, it allows your team to be more composed and in a way the other team has to catch up a little bit.
"I'm extremely disappointed in that respect it didn't go our way today, but the performance in a way deserved a lot more and that's where we need to improve – when you are the better side and you create more chances than the local side you need to get the points."