Doncaster put more daylight between themselves and relegation-threatened neighbours Rotherham with an away victory.
Burnley striker Zian Flemming pounces in stoppage time to snatch a 1-1 draw against 10-man Chelsea at Stamford Bridge.
Two goals in three second-half minutes saw high-flying Cambridge United win 2-0 at League Two's bottom side Newport County.
Portsmouth move six points clear of the relegation zone with victory over promotion-chasing Millwall at The Den.