Timo Werner has struggled to make an impact at Stamford Bridge.
The 26-year-old forward bagged 23 goals and 21 assists in 89 appearances across all competitions.
He managed to score only four goals in the last campaign and was briefly linked to a move to Juventus.
“First of all, the most important thing is that I am happy. I am happy when I play and score goals. That’s the fact. That’s what I should take care of and the other things will come,” Werner said to the Daily Mail.
“I think of course the manager always has different ideas, different thoughts and what you need in different games, I think in many games I was not in his thoughts so I try to change that.
“It is clear I want to play more and I should play more to first be in good shape for the World Cup and also, to have a chance to play at the World Cup.
“I think it doesn’t change anything whether it is a winter world cup or in the summer. I think if I play half or the season or the whole season, I should play.”