KRIS BOYD insists the Rangers board will have to back Derek McInnes in the transfer market if they can complete a deal for the Aberdeen boss.

The 46-year-old is the man the Ibrox hierarchy want to replace Pedro Caixinha but the Dons rejected an initial approach on Tuesday.

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McInnes would inherit a side that are second in the Premiership standings and former Gers striker Boyd said: "I expect if Rangers are to meet the compensation agreed by Aberdeen of £1million then they are going to have to back Derek with money to close the gap on Celtic and pull away from the rest.

"It's not going to be easy but for me Derek has taken Aberdeen as far as he possibly can. They have finished second and won a cup. The timing is right for Derek to leave Aberdeen but for the sake of everybody you do not want it to get messy.

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"Rangers have to get this one correct. When you look at Pedro Caixinha it was an experiment which failed. Graeme Murty came in and steadied the ship.

"The Rangers board will need to back Derek if he takes the job. Give him the finances to close the gap."