RANGERS boss Giovanni van Bronckhorst vented his fury over the Celtic ball boys in last night's Glasgow derby as he complained the ball wasn't returned quickly enough.

The Ibrox manager was left frustrated with his side slumping to a 3-0 loss at the hands of their rivals as Celtic ran riot at Parkhead.

And Van Bronckhorst would likely have been similarly irked if he had spotted Celtic ball boys taunting Allan McGregor after Reo Hatate's opening goal.

Sky Sports footage shows the two ball boys behind the goal celebrating wildly and appearing to gesture to McGregor after the first goal.

One begins by raising his arms in celebration before he is joined by a fellow ballboy who grabs his pal as Parkhead erupted after the opener.

Rangers were left furious over the award of the opener as Calvin Bassey lay floored after colliding with team-mate Joe Aribo in the box - but Bobby Madden ruled the goal should stand.

Sky Sports pundits Andy Walker and Ally McCoist both agreed the goal award was correct but Kris Boyd was insistent play should've been halted.

The co-comms duo went on to question the outrage over the ball boys and returning the bay to play as McCoist joked they were doing Rangers a favour after a dismal display.

Walker said: "surely van Bronckhorst has bigger things to worry about", before McCoist added: "I have to be quite honest I think the ball boys are doing Rangers a favour'."