Ex-Celtic winger Joe Miller says that the side having clear the air talks sets alarm bells ringing for him, although he is happy the Scottish champions are seeking to solve their troubles.
The Bhoys have hit a poor run of form, drawing against Hamilton and Dundee to allow Aberdeen to cut the gap at the top of the Premiership table to just four points.
Boss Ronny Deila is holding clear the air talks with his players and Miller is concerned about what that means.
The former Bhoy said on BBC Radio Scotland's Sportsound programme: "Those talks usually come about when a team's struggling.
"He picks a team and they should be going out there giving 100%. I don't think they are", the former winger continued.
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"It happened to me at Aberdeen when Willie Miller was the manager and it's the sign of pressure on the manager, the staff and the players.
"It surrounds them every day in training and then when the go out on a Saturday the confidence isn't there and they don't get results.
"So, when they're having sit-down talks it's worrying."
Miller is happy that Celtic are trying to do something to arrest their poor form and return to winning ways, but the former Bhoy insists that at the end of the day it is for the players to turn things around on the pitch.
"They're trying to do something about it and be pro-active. Sometimes you can air that and get everything off your chest", he said.
"But the bottom line is that players have got to produce the goods. Ronny Deila's not the man who's kicking the ball, it's the players."
Celtic are next in action at home against Morton in a Scottish Cup quarter-final tie on Sunday.
