Doncaster boss Dean Saunders was unhappy after having a goal chalked off by a controversial offside decision in the 1-1 draw with Stevenage.
Doncaster were trailing when David Syers fired home just before the interval after visiting keeper Chris Day palmed a shot from Kyle Bennett into his path. Referee Phil Gibbs appeared to signal a goal but then disallowed the effort because the linesman had his flag up.
Saunders said: "I thought it was a scandalous decision. I've seen it again on DVD and David is clearly onside when Kyle has the first shot."
He added: "The referee gave the goal and I don't know why the linesman got involved."
Both sides relied on a route one approach in a scrappy first half but it paid off for Stevenage when they took the lead in the 16th minute. Filipe Morais crossed from the left following a corner and Oliver Risser rose to send a glancing header into the net.
Doncaster struggled to find a response until Syers' disallowed effort but they produced a much-improved performance in the second half.
Chris Brown equalised with a cracking shot on the turn in the 79th minute after skipper Rob Jones had headed down a free-kick from David Cotterill.
Saunders added: "I thought some of the football we played in patches was excellent but we can't afford to give teams a start like that."
Stevenage boss Gary Smith, whose team lost their 100% away record, said: "I'm very pleased with the point. I thought it would be a tough affair and it certainly was."
He added: "It proved to be a physical challenge for us but I thought we dealt with it very well and some of our counter-attacking play was very good."