Thomas Tuchel already had a handful of dangerous attacking options to call upon this season as Chelsea FC aimed to repeat as UEFA Champions League winners and also push for the English Premier League title.
Romelu Lukaku's re-arrival at Stamford Bridge might have been the piece to push the Blues over the top for multiple trophies this season under Tuchel.
Lukaku made his return to London this summer, rejoining the club from Serie A side Inter Milan after helping the Italian club win the league title and also qualify for the Champions League group stage.
Since his return to England, the Belgian striker has been on fire for the Blues, scoring three goals in his three league outings and also netting Tuesday's winner against Russian visitors Zenit St.Petersburg in the opening match of the new UCL campaign.
Lukaku has come a long way since his first spell at Chelsea, scoring 198 goals in 370 combined matches for Everton, Manchester United, and Inter Milan.
He's also continued to be one of the top forwards on the international level, helping Belgium remain in the Top 10 on a yearly basis and also come close to claiming trophies as both the 2018 FIFA World Cup and 2020 European Championship.