THERE'S no question who Ronald de Boer is supporting in the crucial Champions League play-off clash between Rangers and PSV - but the Ibrox hero can't pick a favourite.

Former Rangers star de Boer is hopeful Rangers will progress to the Champions League group stage with a triumph over the Eredivisie club but reckons the clash is a coin-flip.

PSV set up a £40million showdown with Rangers after beating Monaco as Giovanni van Bronckhorst's side dumped Union Saint-Gilloise.

It sets up a tight play-off clash with the first-leg at Ibrox on Tuesday night.

And while de Boer saluted PSV's recruitment - and knows all about Rangers - he insisted he couldn't pick a winner.

Speaking to BBC Scotland, he said: "PSV have bought some very good players, they have integrated very well.

"Luuk de Jong showed in the dying seconds against Monaco what a vital player he can be.

"The team looks good and a very good result against a good team in Monaco.

"I must say they were quite lucky in the two games [against Monaco]. But PSV have weapons - they can score from set pieces, they have great players like Joey Veerman and Ibrahim Sangare in the midfield. So they can grind victories also even if they don't play very well.

"I hope of course as an ex-Rangers player that they go through, but I think it's really a 50-50, I can't put my finger on who is the favourites."