Former Rangers manager Mark Warburton has claimed that the club needs investment before they are able to close down the gap between themselves and Old Firm rivals Celtic.

Warburton, 55, quit Ibrox in acrimonious circumstances just over a year ago despite leading the Light Blues back to the Scottish Premiership after four years of battling their way back up through the pyramid.

He believes that the gap between the Gers and the Hoops will keep widening because of the yearly Champions League football that is on show at Parkhead, which reaps a major financial boost and also attracts better quality players.

“You have to recognise Celtic have been in the Champions League now for the last few years, done well to get into the group stage and with that comes financial rewards,” Warburton said, as quoted on the Sky Sports website.

“All that does there is increase the gap between Celtic and Rangers. Every year you are fighting now to close that financial gap.

“The longer Celtic are exposed to Champions League football, the greater the financial divide becomes.

“Rangers need the investment. They need the investment and need to dampen some expectation and recognise they have to build the club back up.”

Warburton also delivered his thoughts on the fans he left behind at Ibrox and says that he believes that they need to be treated better by the board and be more in the loop as to what is happening behind the scenes.

“Be honest with the fans and give them communication. They are aspiring to get back to the top of Scottish football but it will take time and it will certainly take some investment,” he added.

Football Insider verdict

Warburton may not be a very popular figure among Rangers fans, but it is tough to argue with him here. As long as Celtic keep finishing top of the Scottish Premiership, they will continue to keep qualifying for the Champions League, earn more money and attract better players. Rangers can only hope to finish second for the next few years while they play catch up to their old rivals. There has definitely been progress this season and fans do need to remain patient because just a season-and-a-half ago, they were watching second-tier football by a second-tier squad. Celtic may well win 10-in-a-row by the time the gap is closed down, which will not make Light Blues fans happy.

In other Rangers news, Graeme Murty is being tipped to take charge of an English club after a major development on Wednesday.

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