Elijah Campbell's first-half own goal handed Doncaster a dogged 1-0 League One victory over FA Cup quarter-finalists Port Vale, with Rovers taking a major step towards survival.
The win moved the South Yorkshire side eight points clear of the relegation zone, but the Valiants remain rooted to the foot of the table, 11 points away from safety.
An Own Goal Settles a Wet Afternoon
The recalled Hakeeb Adelakun flashed an early effort over the bar for the hosts, while at the other end Rovers keeper Thimothee Lo-Tutala had to be alert to tip a Jaheim Headley shot over.