Diego Costa re-established his lead as the 2016-17 Premier League's top goalscorer on Sunday after his sensational long-range effort helped Chelsea secure a2-0victory over Southampton at St. Mary's Stadium.The Blues found an early 1-0 lead thanks to the individual brilliance of Eden Hazard, but it wasn't until Costa's strike early in the second half that manager Antonio Conte's side knew the three points were secure.Romelu Lukaku initially closed the gap in the top-scorer table earlier on Sunday after bagging the opener in Everton's 2-0 victory over West Ham United before helping Ross Barkley add the second at Goodison Park.Read on for a recap of Sunday's Premier League action, complete with a roundup of the Week 10 scores in full and a look toward the updated top-flight standings.Diego Costa Soars at SouthamptonChelsea talisman Costa again showed glimpses of his best on Sunday after powering the Blues to a convincing 2-0 victory over the Saints, where his missile was the highlight of a hugely important win.After Hazard carved his own path to open the scoring six minutes in, Costa provided the crucial second to salve any Chelsea concerns after 55 minutes, as shown by Sky Football:An eighth goal of the season was enough to once again see Costa rise to his perch as the Premier League's outright leading scorer, not to mention adding his third goal in five matches.Broadcaster Deji Kofi Faremi even went so far as to liken Hazard and Costa to another mercurial Premier League pair that just so happened to clinch last season's title:With Costa fit and in firing form, Chelsea manager Antonio Conte can expect great things, and if his defence can consistently perform as well as it did as St. Mary's Stadium, they could just be the complete package.Lukaku Leads Toffees to Hammers WinAfter failing to seal victory in their previous five outings, Everton put an end to their winless run thanks to a 2-0 triumph over West Ham, where Lukaku looked back to his best against tricky opposition.The Belgian has enjoyed his spells winning games almost single-handedly since moving to Merseyside. After scoring one and assisting another on Sunday, Lukaku is once again showing shades of his talismanic self, per Kristof Terreur of Belgian newspaperHet Laatste Nieuws:Manager Ronald Koeman's side moved up to sixth in the standings following Sunday's result, and with just five points separating them from the summit, it may not be long before the recent barren run is a thing of the past.Midfield maestro Barkley side-footed a left-footed strike in against the Hammers following some brilliant byline play from Lukaku, and the Liverpudlian confirmed his frontman is very much a focus in attack:Everton would be unwise not to use the Belgian's mighty frame to their advantage, of course, but finding Lukaku in consistent scoring form has proved a prickly pursuit at times this term.If Koeman's side can function to pull that off effectively, there's little telling what heights they might soar to this season.Read more World Football news on BleacherReport.com
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