![Chelsea's Diego Costa celebrates his winner.](/web/20160815224613im_/http://www.brisbanetimes.com.au/content/dam/images/g/q/t/9/6/o/image.related.wideLandscape.460x259.gqt92b.png/1471301023815.jpg)
Diego Costa gives Antonio Conte winning Chelsea debut
Chelsea's fiery Spain striker Diego Costa has snatched a last-minute goal to secure a 2-1 home win over West Ham United and hand new manager Antonio Conte a winning start to his Premier League career.