Mason Mount has talked up the impact of Thomas Tuchel on Chelsea since replacing Frank Lampard as manager.
Tuchel arrived at Stamford Bridge in January with Chelsea ninth in the Premier League, five points outside the top four. A steady climb saw them move into the Champions League spots before a recent dip, and they are now fifth, one point behind fourth-place West Ham.
On Tuesday night they saw off Porto in the Champions League despite a 1-0 defeat, winning 2-1 on aggregate to reach the semi-finals.
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