GLASGOW, SCOTLAND - JULY 20: Manager Mark Warburton (C) of Rangers FC and his assistant David Weir attend a training session in Murray Park on July 20, 2015 in Glasgow, Scotland. (Photo by Jeff Holmes/Getty Images)
GLASGOW, SCOTLAND - JULY 20: Manager Mark Warburton (C) of Rangers FC and his assistant David Weir attend a training session in Murray Park on July 20, 2015 in Glasgow, Scotland. (Photo by Jeff Holmes/Getty Images)