Bit of editorialisation from the journalist there. Someone from reddit:
"French speaker here.
He says the usual spiel that everything is possible in football, he's not thinking of leaving, he wants to win the CL at some stage in his life but it's not a priority right now, he's in a good group at Chelsea that's capable of winning trophies each season, contract till 2020 with Chelsea.
One thing he did say is that only once has he said he was ever planning on leaving (at Lille), and only once he has actually left. The rest is mostly newspapers speculating."