LONDON, Nov 5, (APP/AFP) – Marten de Roon’s stoppage-time header earned Middlesbrough a 1-1 draw at Manchester City on Saturday to leave Pep Guardiola’s side in a vulnerable position at the Premier League summit. Sergio Aguero’s 150th City goal looked to have sent his side three points clear, but De Roon brought the Etihad Stadium back to earth following Tuesday’s brilliant 3-1 win over Barcelona in the Champions League. City’s slip-up means Chelsea can surpass them if they overcome Everton in Saturday’s late game, while Arsenal and Liverpool — both just a point off the pace — will also have designs on top spot.