The difference 12 months makes. When Jose Mourinho last visited Goodison Park, his post-match debrief revolved around his frustrations that Chelsea lacked a top-class striker. He spoke about his side’s evolving ‘profile’, lamented the chances they had squandered in a 1-0 defeat and explained why it was the one area that was likely to hinder Chelsea’s pursuit of honours. Fast forward to the present and a £32million investment has transformed Mourinho’s squad. VIDEO Scroll down to watch Jose Mourinho explain how happy he is with Diego Costa Elation: Diego Costa runs off in celebration after scoring Chelsea's sixth and final goal at Goodison Park
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Diego Costa signed for Chelsea for £32million from Atletico Madrid and has had an instant impact under Jose Mourinho in the Premier League
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‘It’s been nice to score goals but the most important thing is I help the team to win. Hopefully that continues all season,' says Costa
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Mourinho: ‘He comes to play football and to give a spectacle but people have been chasing cards for him like they did in this match (against Everton)'
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Everton manager Roberto Martinez says Costa 'needs to understand we are quite unique in our league - we are very honest and respectful'
Everton
Everton
After conceding 10 goals in the first three games, Martinez has other things to worry about than Costa’s behaviour but will take some solace that @placeholder won’t face a side of Chelsea’s quality every week.