Middlesbrough continued their strong start to the season with a comfortable win at Peterborough.
Tony Mowbray's side took the lead in the fourth minute when Marvin Emnes broke clear and played in Barry Robson, who slotted past Paul Jones.
Jones made a fine save to deny Tony McMahon but Seb Hines doubled the lead from the resulting corner with a powerful header.
Peterborough improved but suffered their first home defeat since November.
Middlesbrough have enjoyed an excellent start to the season, having picked up three wins and a draw from their opening four Championship games of the season.
And they continued that form with two goals in the opening half-hour as Posh struggled to contain their attacking game.
Darren Ferguson's men - who on Saturday - started strongly in the second period.
But Danny Coyne was in defiant mood in the Middlesbrough goal, first keeping out a fizzing George Boyd effort before twice denying the impressive Lee Frecklington.