Calvin Andrew's first-half goal was enough to send Rochdale into the FA Cup fourth round after a 1-0 win at Doncaster.Andrew headed home in the 18th minute as Dale gained revenge on Rovers for a 2-0 League One defeat at the Keepmoat Stadium only last Friday.It was Andrew's fourth goal of the season as the striker glanced home Joseph Bunney's wicked free-kick from the left.Doncaster were poor in the first half and rarely looked like getting back into it, but it was a different story after the break.Only a miraculous save from Josh Lillis kept Dale in front, as he brilliantly blocked Alfie Beestin's effort from point-blank range before John Marquis hit a post in the 66th minute.The onslaught continued as Andy Butler headed wide, while Tommy Rowe missed another glaring opportunity when he blazed over from eight yards.Doncaster were also left furious after having several penalty claims turned down as Rochdale were able to dream of a plum fourth-round tie.ends