Shrewsbury Town captain Ian Sharps says the team have struggled to reproduce their best form since they lost 3-1 at Arsenal in September.
The Shrews have won just two out of five games since the defeat in the third round of the Carling Cup.
The 31-year-old told BBC Radio Shropshire: "We are up there without playing to our best, especially over the past few weeks.
"We've had a hard run of games but that's still no excuse."
Shrewsbury put in a creditable performance at the Emirates having won five of their previous six league matches, but their recent struggles have seen them fall to sixth in League Two.
"We should perform better and hopefully in the next few weeks we can get back to somewhere near where we were before the Arsenal game," Sharps continued.
"Accrington (on Tuesday night) will be a hard game, I've got a lot of respect for John Coleman, he's a good manager at this level and I'm sure he'll have them fired up," he added.