Get the Onefootball app here! = br Press conference with Everton manager Ronald Koeman ahead of the game away to Chelsea, saying Diego Costa would be welcome at Goodison Park. br br Please subscribe, like the video and share wherever you can!br br If you want to support my channel you can donate here = br I own the rights to this footage, DO NOT copy and re-upload this video otherwise copyright strikes and legal action will be taken.