Costa winner gives Conte's Chelsea reign a positive start

Blues edged out West Ham

Chelsea, Diego Costa

Chelsea's Diego Costa celebrates after scoring during the English Premier League soccer match between Chelsea and West Ham at Stamford Bridge stadium in London, Monday, Aug. 15, 2016.(AP Photo/Frank Augstein)

Antonio Conte has seen his Chelsea side win in his first competitive game in charge.

The Blues beat West Ham 2-1 at Stamford Bridge in their Premier League opener.

The decisive goal came in the 89th minute from Diego Costa, who found the bottom corner with a shot.

Eden Hazard had given Chelsea the lead just after half-time when he converted a penalty after Michail Antonio had fouled Cesar Azpilicueta.

But James Collins equalised for West Ham when the ball fell for him at a set-piece.

But the Hammers could not hold on to the draw as Costa found the net.