Chelsea and Atalanta each have three wins, a draw, and a loss from five games. Fans recall the Blues' 3-0 Club World Cup final triumph over PSG in July, fueling chants of 'World Champions.' Young star Estevão Willian, Chelsea's record-breaking youngest Premier League assist-maker, dazzles after his debut goal and assists. Atalanta brings three straight UCL clean sheets to Gewiss Stadium, but Chelsea's unbeaten away form adds optimism ahead of the 8pm GMT kickoff.