Holders Chelsea made light of their off-pitch problems to reach the Champions League quarter-finals by beating Lille 2-1 away on Wednesday to complete a 4-1 aggregate victory.
Lille had made the better start to the match. Jocelyn Gouvennec's side put Chelsea on the back foot as Mateo Kovacic, Jorginho and N'Golo Kante struggled to take control of the midfield.
The French team were rewarded in the 38th minute when they were awarded a penalty following a VAR review after a Jorginho handball in the area.
The 36-year-old Yilmaz, the third oldest scorer in the Champions League knockout stages after Paolo Maldini and Ryan Giggs, buried the spot-kick into the top corner to give the hosts a deserved lead and high hopes of an upset after losing the first leg 2-0 at Stamford Bridge.
Lille, who had not conceded a goal in their three Ligue 1 games since the first leg, let their guard down, however, and Chelsea punished them with their first shot on target as Pulisic collected a fine through ball from Jorginho to score with a low shot three minutes into first-half stoppage time.
Chelsea were ruthless and after 71 minutes Mason Mount's cross bounced off Azpilicueta's knee into the top corner to end Lille's hopes of reaching the last eight.
