DREADFUL Doncaster succumbed to two second half Danny Haynes goals in a dreary South Yorkshire derby.
An unmarked Haynes headed home Bobby Hassell's cross ten minutes after the restart after drifting in between Adam Lockwood and James O'Connor.
Midway through the second period the pacey striker then cut in from the right and fired home a left foot shot which Neil Sullivan appeared to have saved until it squirmed off his hand and into the net - condemning Rovers to a fourth successive defeat.
Billy Sharp went closest to breaking the deadlock before the break when his close range shot was kept out by the legs of Luke Steele.
But both sides lacked any sort of fluency and chances were at a minimum - until Barnsley started the second period in determined fashion.
Garry O'Connor came within inches of converting Jacob Butterfield's centre but minutes later Haynes headed in the opener.
The goal failed to provoke any sort of response from the hosts and it was not until Haynes had scored his second that debutant Paul Keegan placed a 20-yard shot just over, while James O'Connor headed wide with the goal at his mercy in stoppage time.