Liam Delap grabbed his debut goal for Chelsea as they cruised into the Club World Cup last 16 with a 3-0 victory over Esperance Tunis.
The ex-Ipswich forward found the net shortly after defender Tosin Adarabioyo had broken the deadlock in first-half injury time in their final Group D match in Philadelphia.
Tyrique George added a third in stoppage time after Chelsea had a penalty overturned by VAR for handball.
This outcome sets up a clash against Benfica for the London side, who topped Group C ahead of Bayern Munich, in the next round in Charlotte on Saturday.
It was a significant moment for Delap as he started repaying his hefty £30 million price tag.
With Nicolas Jackson serving a suspension, the 22-year-old capitalized on his chance to impress as manager Enzo Maresca rotated the squad as planned.
Delap seized the opportunity on a warm and humid evening in Pennsylvania, with the temperature still at 33°C at the 9 pm kickoff.
His goal, assisted by Enzo Fernandez, secured the win before halftime with a quick double strike.
With FIFA president Gianni Infantino in attendance, Chelsea had already controlled the game from the start.
Needing just a draw to secure second place in the group behind Flamengo due to a better goal difference than Esperance, Chelsea were in a comfortable position.
Esperance pushed forward but lacked the cutting edge in front of goal.
Delap had the first chance of the match, but his shot after skipping past two defenders was saved by Bechir Ben Said.
Kiernan Dewsbury-Hall attempted a header from a Malo Gusto cross, but it was cleared by Yassine Meriah.
Josh Acheampong forced a save from Ben Said from distance, but the rebound opportunity for Delap was offside.
Chelsea increased their lead with two quick goals in first-half injury time after dominating the opening period.
Adarabioyo nodded in a Fernandez free-kick to open the scoring, then set up Delap moments later for the second goal.
Delap showcased his skills by beating defenders before calmly slotting past Ben Said.
Nkunku appealed for a penalty early in the second half, but the referee waved play on before Madueke's shot went wide.
Chelsea were eventually awarded a penalty after a Meriah handball from an Andrey Santos shot from distance.
Although it appeared to be a questionable call, the decision was upheld following a lengthy VAR review, leading to George's goal.