A lack of options will prevent head coach Garry Monk from ringing the changes to his Cambridge United side for tonight’s Carabao Cup first round clash against Queens Park Rangers. With the likes of Gary Gardner, Jordan Cousins and Ryan Loft all working their way back to full fitness – and Taylor Richards cup tied – United’s small squad is currently being stretched at this early stage of the season. As a result, the starting line-up that runs out at the Cledara Abbey Stadium this evening will look similar to the one that was beaten 2-0 during Saturday’s Sky Bet League One opener at Stockport Co…