Doncaster virtually secured their Championship status after comfortably seeing off Plymouth at Home Park.Plymouth had made a bright start but Rovers went in front when Paul Heffernan cut the ball back for the onrushing John Spicer to score. [LNB]Gareth Roberts's excellent cross from the left then found substitute James Hayter, who fired in a bullet header. [LNB]And Heffernan made the game safe with a shot, moments after Plymouth's Marcel Seip had been denied by a good save. [LNB]Plymouth Argyle manager Paul Sturrock told BBC Radio Devon:[LNB] [LNB][LNB] emp_load.getEmpEmbeddedParams("emp_8006393");"We've done nothing different to any other week, training just the same. But we weren't out there and had one of our poorest games of the season. [LNB]"It just beggars belief, and that's now a mental approach the players are going to feel. [LNB]"There's no excuses today, it was one of the biggest games of the season and they came out with this was a lacklustre performance." [LNB]Doncaster boss Sean O'Driscoll: "We have not looked at the league table all season, we have concentrated on performances so I don't think we are going to change now. [LNB]"In this division you need to be organised, just passing the ball does not get you what you want to get, so we learnt from the Preston game. We have done that all season. [LNB]"Every game - won, drawn or lost - we think we can do this better or that better. I thought we were excellent today." [LNB]Plymouth: Larrieu, Gray, Seip, Barker, Sawyer, Judge (Fallon 71), Fletcher, Duguid, Gallagher (Clark 79), Barnes (Donnelly 65), Mackie. Subs Not Used: Saxton, Timar. [LNB]Doncaster: Sullivan, Chambers, Mills, Roberts, Hird, Wellens (Byfield 77), Wilson (Hayter 21), Spicer, Martin Woods, Shiels (Van Nieuwstadt 68), Heffernan. Subs Not Used: Guy, LuaLua. [LNB]Booked: Spicer. [LNB]Goals: Spicer 15, Hayter 33, Heffernan 70. [LNB]Att: 11,100 [LNB]Ref: Phil Crossley (Kent).