Gary Lineker introduces highlights of the day's six Premier League games, including Everton against Arsenal and Chelsea versus Leicester City. Newly-promoted Leicester face a tough trip to Stamford Bridge in their first away fixture since returning to the top flight. Title contenders Chelsea have strengthened their squad this summer with the acquisition of Spain stars Diego Costa and Cesc Fabregas plus Brazilian international Filipe Luis, all of whom could make their home debuts against the Foxes. Everton and Arsenal spent much of last season duelling for the fourth and final Champions League spot, which the Gunners eventually secured. That success helped manager Arsene Wenger recruit Chilean World Cup star Alexis Sanchez for £35m this summer, whilst the arrivals of Colombian goalkeeper David Ospina and young English full-back Calum Chambers have also boosted Arsenal's options. Everton, meanwhile, smashed their club record to sign striker Romelu Lukaku, who had a successful loan