article_snippet.sent: However, Rob Kiernan's clumsy handling of Derbyshire near the hour mark saw the former City forward go down in the box only for referee Dean Whitestone to wave away appeals for a spot-kick, leaving the Millers boss visibly enraged as the home side held out.
article_snippet.sent: Derbyshire 48' Referee:
article_snippet.sent: Andrew Shinnie was unfortunate to be flagged offside from Donaldson's early flick-on while winger Demarai Gray's ball into the box from the left was dangerous but fruitless.
article_snippet.sent: David Cotterill forced a good low save from Emiliano Martinez with a drive from just outside the area in the 19th minute as Gary Rowett's side continued to press.
article_snippet.sent: The deadlock was broken in the 27th minute with a well-worked but uncomplicated attack.
article_snippet.sent: Andrew Shinnie headed Cotterill's excellent cross over in the 38th minute after Donaldson's slight touch beforehand slightly changed the flight of the ball but eventually the second did come two minutes before the break.
article_snippet.sent: David Cotterill hit a free-kick from distance with trademark power and accuracy and when Emiliano Martinez palmed it back into play, rather than for a corner, Donaldson pounced with an easy diving header.
article_snippet.sent: Donaldson fired a decent effort over on the turn as Blues sensed blood before the half was over.
article_snippet.sent: Slack defensive play left City goalkeeper Darren Randolph in bother and when City goalkeeper Darren Randolph only palmed Lee Frecklington's shot to Derbyshire, the deficit was halved as the striker tapped home with ease.
article_snippet.sent: Lee Frecklington's then had a chance saved as City goalkeeper Darren Randolph kept out a deflected effort, while Martinez reacted quickly as Donaldson broke through at the other end.
article_snippet.sent: Derbyshire was not far off with a 76th-minute header, while Donaldson and substitute Lloyd Dyer both came agonisingly close at point-blank range and Tesche twice fired straight at Martinez as the home side missed numerous chances to make the win more comfortable.