- Early career: Lukaku was born in Antwerp, Belgium, to a Congolese father and a Belgian mother. He began his youth career at Rupel Boom, before moving to Anderlecht in 2004. He made his professional debut for Anderlecht in 2009, at the age of 16. He won the Belgian Pro League title and the Belgian Cup with Anderlecht in 2010.
- Chelsea: In 2011, Lukaku moved to Chelsea for a fee of £10 million, becoming the most expensive teenager in the world at the time. He made his Premier League debut for Chelsea in 2012, but struggled to establish himself in the first team. He was loaned out to West Bromwich Albion in 2012 and Everton in 2013.
- Everton: Lukaku joined Everton permanently in 2014 for a fee of £28 million. He scored 25 goals in his first season at Everton, helping the club to finish fifth in the Premier League. He scored 22 goals in the 2015-16 season, and 28 goals in the 2016-17 season.
- Manchester United: In 2017, Lukaku joined Manchester United for a fee of £75 million, becoming the most expensive Belgian player of all time. He scored 27 goals in his first season at Manchester United, helping the club to win the UEFA Europa League. He scored 16 goals in the 2018-19 season, and 12 goals in the 2019-20 season.
- Inter Milan: In 2019, Lukaku joined Inter Milan for a fee of £73 million, becoming the most expensive player in the history of the Italian Serie A. He won the Serie A title in his first season at Inter Milan. He scored 24 goals in the 2020-21 season, and 27 goals in the 2021-22 season.
- International career: Lukaku has made 106 appearances for the Belgium national team, scoring 68 goals. He made his international debut in 2010, and has represented Belgium at the 2014 FIFA World Cup, the 2016 UEFA European Championship, and the 2018 FIFA World Cup. He was named the Belgian Player of the Year in 2014 and 2017.
Lukaku is a physical striker who is known for his strength, aerial ability, and finishing skills. He is considered to be one of the best strikers in the world.