Chelsea head coach Thomas Tuchel has credited his assistant for the tactical tweak that proved crucial in the Blues' narrow 1-0 Champions League victory over Malmö on Tuesday night.
The visitors struggled to break the Swedish champions down in the first half, only mustering one clear-cut opportunity when Kai Havertz raced through on goal, but his weak attempt was smothered by Johan Dahlin.
Tuchel had started with Hakim Ziyech as the right-forward behind Havertz, with Callum Hudson-Odoi on the left. The wide men swapped flanks at half-time and would combine for the winning goal ten minutes later.
Hudson-Odoi played a cute one-two with Havertz before racing away down the right and playing an inch-perfect cross for Ziyech to slot into the gaping net.
Speaking after the game, Chelsea boss Tuchel revealed his assistant, Zsolt Low, had been the mastermind behind the tactical tweak.
