The midfielder left promoted Burnley to sign a two-year deal with the Ibrox side earlier this summer.
Rangers midfielder Joey Barton has told Sky Sports, as quoted by the Scottish Sun, that he would not have even considered joining the club if he was not sure that they can win the Scottish Premiership title this season.
One of Burnley's most impressive players last season as the club won promotion to the Premier League, Barton turned down the chance to return to the English top flight and instead made the move north of the border to Ibrox.
That decision has been questioned by some as the man who turns 34 in September is unlikely to get another chance to play in the Premier League.
However, Barton has defended the move, telling Sky Sports that he would not have sacrificed that chance or uprooted his family if he was not sure that he will be part of a big success at Ibrox this season.
The one-time England international said, as quoted by the Scottish Sun: "I’m coming to Rangers to win the title. Since I’ve walked in that’s what the manager and everybody’s spoke about. That’s the expectations of Rangers Football Club.
"I wouldn’t have come and wouldn’t have moved my family four hours away from home if I didn’t think we could be really, really successful here.
"So hopefully I can come and add to that. We’ll be competitive until the end of the year, I’ve got a strong belief we’ll be right where we need to be come May."
Rangers are certainly doing everything they can in the transfer window to equip themselves for a title challenge and a battle with arch-rivals Celtic.
As well as Barton, manager Mark Warburton has brought in the likes of former Croatia star Niko Kranjcar, experienced QPR defender Clint Hill, and Liverpool midfielder Jordan Rossiter to bolster his squad.