"Without doubt Mattie is a massive outlet for us down that left hand side; he has got pace and he creates chances for us," says Kevin, who replaced him at the weekend.
"He scores goals as well as we saw the other week so he is very important to us.
"With him going off on Saturday it disjointed us a little bit as we had no natural wide left player.
"I didn't actually see it but a few of the lads said it was pretty late and pretty high.
"Mattie was in a lot of pain and he was caught pretty hard.
"The way the lads reacted I gather it was a pretty bad tackle.
"You can always tell by the reaction of the other players how bad it was and judging from that it can't have been good.
"The sooner he gets back the better because West Ham United need Mattie Etherington."
Of the game overall, he says:
"It was a strange one because we wanted to get the ball down and play but there were a lot of long diagonal balls.
"They were hitting their front men, we were trying to hit ours, and it was a bit of a no-match because I don't think me or Mickey got on the ball enough to affect the game.
"It was one of those games that passes you by and before you know it you are back in the dressing room having lost 2-0.
"Kyle was a handful up front and if you have got someone 6'4" or whatever he is you have got to use him - and they used him very well.
"It was bitterly disappointing but the good thing about football is that there is always another day and another game to bounce back in."
"We went there hoping to win the game, and I think it was there for the taking; neither side played particularly well.
"The first goal is always the killer and they got it but I don't think we deserved anything out of the game so it was probably a fair result."