The former Newcastle United and Queens Park Rangers midfielder has joined Rangers on a free transfer this summer.
Rangers will feature in the Scottish Premiership next season after winning the Scottish Championship title during the 2015-16 season.
Barton is a high-profile signing for the Gers and will be a key player in Mark Warburton’s quest to compete with Old Firm rivals Celtic for the Scottish Premiership title during the 2016-17 campaign.
Christie, who is just 21 years of age and plays as a midfielder, believes that the Englishman will not find Scottish football easy.
“There’s no bones about it, he’s not going to come up here and have an easy time — because it’s not an easy league,” the Scotland Under-21 international told The Scottish Sun. “He’s a good signing for Rangers but we’re focused on what we want to do.”
Barton recently made some bold and controversial comments about Celtic manager Brendan Rodgers and midfielder Scott Brown.
Brown is one of the best midfielders in the Scottish Premiership, but the former Manchester City man told talkSPORT that the Scotland international is not in his league.
The new Rangers signing also took a dig at new Celtic manager Rodgers, highlighting to The Mirror the fact that the former Liverpool and Swansea City boss has not won anything.
When asked by The Scottish Sun if he has had any communication with Brown over Barton’s jibes, Christie said: “Not really. I hadn’t seen it but I’ve been told.
“I know for sure that it won’t faze Broony. I’m sure Joey Barton is going to play it up a bit. I’m sure we’ll have our jokes with Broony about it — and there might be a bit more of it to come.”