Rangers won the Scottish Championship title with ease last season and gained automatic promotion to the Scottish Premiership for the 2016-17 campaign.
Mark Warburton’s side will be expected by many to challenge Old Firm rivals Celtic for the league title in the Scottish top flight next season.
Former Celtic winger Provan believes that Rangers’ chances of winning the Scottish Premiership title depend on the signings Celtic make in the summer transfer window.
“With no disrespect to Aberdeen or Hearts, this will be another Old Firm battle for the title,” Provan wrote in The Scottish Sun.
“Thanks to Warburton’s coaching nous and judgement of the transfer market, Gers should be in a position to give the champions a run for their money.
“But Rangers’ title chances will depend on Celtic’s ambition in what remains of this window. Having paid top dollar to bring Brendan north of the border they have to back him now. Good players cost good money and this ‘Tic side needs better footballers.”
Scottish Premiership giants Celtic have added three new faces to their squad so far this summer.
Forward Moussa Dembele, who is 20 years of age, has joined the Bhoys after leaving English club Fulham at the end of the 2015-16 season.
Midfielder Kristoffer Ajer, who is 18 years of age, has joined up with the Celtic squad, having agreed a pre-contract with the Hoops back in February.
Paul Joseph Crossan has also moved to Celtic Park, although the 17-year-old forward is not expected to feature much for the first team next season.