MIDFIELDER Liam Trotter rejected criticism of Millwall's work rate after their 2-0 loss to Burnley on Saturday.
Boss Kenny Jackett felt the Lions were sluggish against the Clarets as they slipped to their first defeat of 2013 - but Trotter insisted that was not due to a lack of effort.
"Being out on the pitch, sometimes you feel like you are working your hardest and other people are looking at it and saying that you are not," he told NewsAtDen.
"I thought everybody ran as hard as they usually do - as hard as they could do. Certain things come into play - be it the cold weather or irregular training sessions.
"These are ifs and buts but I think every player gave 100 percent effort and we just did not have the legs, for whatever reason. But it wasn't down to a lack of effort.
"Like the manager said, maybe we lacked a bit of bite but that stemmed from the way we started the game. We were chasing it and that always makes it harder."
Sam Vokes' soft opener put the visitors ahead in the 19th minute at The Den and Trotter admitted Millwall were too slow out of the traps.
Their misery was compounded when, despite improving after half-time, Danny Ings headed home a killer second goal to secure victory for Sean Dyche's side.
Trotter said: "We didn't perform well - that was obvious. We started a bit slowly and that's happened a couple of times this season now. We need to rectify that.
"At the same time, we had some really good chances. James Henry put in two brilliant crosses for Andy Keogh and Dany N'Guessan, but we just couldn't get on the end of them.
"They put in two similar crosses where we had defenders there but the ball has managed to sneak in. The first one went through David Forde's legs and the second went through Danny Shittu.
"It was one of those days where nothing went right, but we didn't help ourselves with the way we started. We need to start better.
"Burnley pressed us high up the pitch and once they got in front they dropped deep and tried to catch us on the break."