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At some point this season, Chelsea were 10th in the league and was struggling under former boss Frank Lampard.
However, the appointment of Thomas Tuchel saw a dramatic turnaround in fortunes, and Chelsea have since moved to fourth in the league.
Chelsea are now fighting for the Champions League, FA Cup and to also finish in the top four.
Mateo Kovacic has now admitted that he was worried when Chelsea languishing down in 10th place.
Kovacic recently said in an interview with Chelsea FC’s website: “The new manager has come in, with clear ideas of what he wants and the team responded very, very well to all that he asked of us in how he wants to play.
“I think we are doing very well, but the most important thing is to keep going, winning games, and to be as high as possible in the Premier League this year.
“Obviously, a team like Chelsea wants either to win or be in the top four, which is important.
“In football, if you approach the games and train well, everything can change in one or two weeks, and that’s what happened.
“We were 10th and I was really a little bit worried as well because, to be in that position and to not reach the top four, would be a bad, bad season for us.
“But now we have come back, and we need to have the same approach as we did before – train good, approach every game well and I hope it will end well for us this season.”