The Ibrox side have offered up the use of their facilities in the build-up to the Italians' Champions League clash with Neil Lennon's men at Parkhead on Tuesday
The Ibrox outfit have invited Antonio Conte's men to train at Murray Park in the build-up their last-16 clash with the Bhoys at Parkhead on Tuesday evening.
| CELTIC LATEST
|19/4||Gary Hooper to score and Celtic to beat Juventus is 19/4 with BetVictor
But Commons says he has no interest in where the Serie A leaders prepare prior to the game and aimed a barb at his side's Glasgow rivals.
“They can train in my back garden, it would make no difference. If they want to train at a Division Three training ground let them get on with it!" Commons told the Scottish Express.
The Nottingham-born midfielder went on to reveal that Neil Lennon's men are full of confidence going into the fixture.
"Of course we fancy ourselves over the two legs. We’re quietly confident," he continued.
"We don’t have a swagger about it because we’ll go into both games as underdogs but we know we are more than capable of winning if we all play well.
"We’ve always been underdogs so for us to start taking the approach that we’ve made it would be the wrong attitude.
"We’ve gone into these games as underdogs, as people who are hungry for the game and want to prove our point and show the critics are wrong.
"I still see us as underdogs but we are a dangerous team to play against, especially at Parkhead. If all our top players are on song and the subs are making a good contribution too, then I think Juventus are in for a tough night."