http://www.talksport.co.uk/sports-news/football/premier-league/transfer-rumours/130716/chelsea-target-bayern-munich-ace-mikel-faces-axe-201758 http://football-talk.co.uk/80754/chelsea-linked-with-move-for-16m-rated-brazilian-midfielder/ i think he would be a good option to anchor our midfield
oscar has proved for brazil he is good enough defensivley to play in a 4-3-3. he presses well , great workrate , can win tackles. (of course the other 2 will be better at defending eg. ramires and mikel /de rossi or gustavo , paulinho ect)
he was really good 2009-11. but the last 2 seasons have been mostly lackluster from him. doubt he would leave with romeu gone too. essien is nowhere near good enough to start these days...