Celtic assistant manager Johann Mjallby believes his side should have been awarded a second goal in their
1-1 draw against Ross County in Dingwall
Anthony Stokes' close-range strike was cancelled out by Iain Vigurs' long-range effort, but Tony Watt had a second-half goal ruled out for offside.
"We should have had a second goal, which the ref said was offside," said Mjallby.
"I've seen it, and there's no chance it was offside."
Celtic have failed to secure an away win against Ross county this season, losing to a last-minute goal at Victoria Park in March, and Mjallby was critical of the battle-worn pitch, which he felt contributed to the quality of play on offer at Sunday's draw.
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Celtic assistant manager
“We should have had a second goal, which the ref said was offside. I've seen it, and there's no chance it was offside.”
"It's pretty difficult to play on a surface like this," said Mjallby. "Both teams wanted to pass more on the deck, but it is hard because you don't want to take too many chances in your own half.
"It's quite easy for players to go direct, which doesn't suit us and the way we play.
"But sometimes you just have to deal with it, and we dealt with it well in the first half, but not the second half.
Late in the match, Celtic defender Efe Ambrose had a decent headed chance cleared off the line, but television evidence later indicated that the ball had not crossed and no goal was given.
Mjallby insisted the league champions performed well in the earlier stages of the game, but the County equaliser late in the first half made it difficult for Celtic to regroup for the restart.
"Efe had a great header and their defence did their job, but in the second half we didn't create that much," said Mjallby.
"We had the wind against us and should have done better, but we didn't.
"We were happy with the first half, but we were annoyed we conceded so late into the first half, which we did against Motherwell.
"We're disappointed we didn't get the second goal that we felt we deserved."