Alan Shearer has given his thoughts on Chelsea star Romelu Lukaku's struggles in front of goal this season. He believes the Blues need the Belgian to regain his form again if they are to mount a title challenge this campaign.Lukaku has only managed to score 3 goals in his 11 league appearances so far for Chelsea, in what has been a rather disappointing return by the forward. The 28-year-old Belgian has come off the bench in his last four league appearances for the Blues. However, Shearer believes he will be a key figure for Thomas Tuchel's side this season. He explained:"Lukaku, who I saw as probably the most important signing that any club made last summer, has not started a Premier League game since 16 October. He has not scored in the top flight since 11 September, but Chelsea were coping pretty well without him until recently. Not any more."“Clearly, to get back on track they need Lukaku to start firing again, and quickly, or for someone else to provide the spark they need. They looked flat against Wolves at the weekend and although they are still right in the mix for the title, they cannot afford to fall much further behind."Frank Khalid@FrankKhalidUKThomas Tuchel insists Romelu Lukaku is still recovering from injury & adjusting to English football amid lack of game time, as he admits team have shown more 'intensity' without him.2:23 AM · Dec 16, 20214100193Thomas Tuchel insists Romelu Lukaku is still recovering from injury & adjusting to English football amid lack of game time, as he admits team have shown more 'intensity' without him. https://t.co/233R8ms0YqChelsea have only managed to win two of their last five league games, which has seen them fall 6 points behind Manchester City at the top of the Premier League table. Tuchel will need his star-striker to start firing in the goals again as the second half of the campaign commences."From a personal and emotional point of view it was a really difficult thing" - Lukaku's agent on Chelsea switchLukaku has had a disappointing season at ChelseaEarlier this month, Lukaku's agent, Federico Pastorello, opened up about the Belgian's move from Inter Milan to Chelsea and how it had a massive impact on the striker. He explained:"We have received a lot of criticism from Nerazzurri fans. Because, when these things happen, they feel upset. Unfortunately. The decision to leave Inter was much more painful than what people think. We really discussed it a lot.“I have to be honest, just because on the other side there was another club that means a lot to Lukaku, we decided to go ahead with this deal. From a personal and emotional point of view it was a really difficult thing. And Chelsea sought him out with great desire."footballitalia@footballitaliaRomelu Lukaku’s agent Federico Pastorello highlighted how the decision to leave Inter for Chelsea was ‘much more painful’ than people expect. football-italia.net/lukakus-agent-… #FCIM #Inter #CFC #Chelsea #SerieA #Calcio #Transfers7:26 AM · Dec 14, 2021104Romelu Lukaku’s agent Federico Pastorello highlighted how the decision to leave Inter for Chelsea was ‘much more painful’ than people expect. football-italia.net/lukakus-agent-… #FCIM #Inter #CFC #Chelsea #SerieA #Calcio #TransfersLukaku returned to Stamford Bridge in August, leaving Inter Milan in a deal worth £97.5 million. His first stint at Chelsea came 10 years ago, when he signed on from Anderlecht as an 18-year-old. He only appeared 15 times for Chelsea before he was sold to Everton in 2014.In the years since, Lukaku has established himself as a proven goalscorer for club and country. The Belgian enjoyed his best campaign till date last season when he netted 24 goals in 36 league appearances for Inter Milan, helping the club lift the Serie A title.