Doncaster Rovers boss Grant McCann has warned promotion rivals to not write them off as they secured a place in the League One playoffs.

After Charlton recorded a convincing 4-0 win against Rochdale, John Marquis and Kieran Sadlier’s goals helped Rovers beat Coventry City 2-0 and shore up sixth spot in the table.

Because of Portsmouth’s draw with Accrington Stanley, and Sunderland’s defeat at Southend, Charlton will face Doncaster in the playoff semi-finals.

McCann feels his side will be classed as the underdogs, compared with Charlton, Portsmouth and Sunderland, but is keen to prove people wrong.

“We’ve been the underdogs all season,” he told the Doncaster Free Press after the Coventry game.

“Peterborough hired a serial promotion winner in Steve Evans and sacked him. Then they hired another serial promotion winner in Darren Ferguson.

“This is what we’re up against, real experienced managers in this league.

“This group has been written off right from day one and we’ve just proved everyone wrong. We’ve proved we can challenge for promotion, that we can finish in the top six like we’ve showed today.

“You know what, everyone will write us off in the playoffs. We’ll probably be the team people look at and say Doncaster have got no chance.

“We’ll see.”

Since Charlton secured third spot, and Doncaster finished in sixth, the Addicks will be travelling to the Keepmoat Stadium for the first leg on May 12.

That’s before, five days later, they host the second leg at The Valley (May 17) with the winner of the two legs facing either Portsmouth or Sunderland at Wembley.

“It’s going to be a tough game,” McCann told the Doncaster Free Press.

“They [Charlton] were far better than us at The Valley. We’ve come a long way since then, and we probably should have beaten them at our place.

“I think it’s going to be a good game and we’ve got to make sure again we get the gameplan right.”