Bolton defender Gary Cahill admits he and his team-mates need to up their game after a torrid start to the Premier League season.
The Trotters suffered a 2-0 defeat at home to Sunderland on Saturday to leave them struggling in the basement of the table after taking just six points from nine games.
England international Cahill, who was linked with a summer move to Arsenal but ended up staying at the Reebok Stadium, believes certain players, including himself, are letting the team down.
"A few of the lads, myself included, need to have a look and question themselves over whether they are doing enough," he told The Telegraph.
"You can maybe afford to carry one player but you cannot afford to carry a handful and it has been different players in different games."
He added: "Last year, we were smashing teams at home. I don't know if the confidence is down because of the heavy defeats we took against the big sides. You are only human. Your confidence is going to go down."
Cahill is unhappy with the workload being heaped on Bolton's defenders after succumbing to another attacking display against Sunderland.
"When you are under pressure, there is only so much you can head out and defend," he said.
"It is difficult because I was out there thinking, 'Why are we under so much pressure?' We were defending all the time. We have to sort it out."