Lucas Cavallini

Nacional

In June 2011, he participated in the 2011 U-20 Copa Libertadores. In the first game, Nacional beat Libertad 1–0 with a goal by Romero. In the second match, they beat Jorge Wilstermann 3–1 with goals from Bueno, Marchelli and again Romero. In the third and final game, Nacional drew 0–0 with Universitario, and qualified for the quarterfinals. On June 20, they were defeated by Mexican side América 1–0, which led to their elimination. His development in the youth squad lead him to sign a senior contract with the club in early 2012.

Loan to Juventud

In mid-July 2012, he was loaned to Juventud de Las Piedras to make his professional debut and have more chances in the first team. In his second match with the club, he scored his first official goal in the 1–0 home victory against Central Español. On October 7, he was the man of the match against Bella Vista, assisting and scoring a goal in his team's 2–0 victory. His third goal came six days later, in a 1–1 away draw against Fénix.

CA Fénix

After a slow start during his first season on loan with C.A. Fénix, Cavallini emerged as the club's most prolific goal scorer in the Apertura of the 2014–15 Uruguayan Primera División season. He joined them permanently before the start of the 2015 Apertura.

Peñarol

Cavallini joined Peñarol on January 10, 2017. He scored his first goal against Montevideo Wanderers on February 26. He was loaned to Liga MX side Puebla on August 31, 2017.

Puebla…

Cavallini launched his international career for Canada at 18 years old, debuting for the U-20 team in 2011 during the CONCACAF U-20 Championship in Guatemala. Cavallini earned three call-ups to Canada's U-23 National team. Cavallini's performance, along with the fact that he "plays in a different type of league (down in Uruguay)", according to head coach Stephen Hart, earned him his first call up to the senior roster to face Trinidad & Tobago in a friendly match on August 13, 2012. Cavallini debuted for Canada as a second-half substitute for Terry Dunfield against Trinidad, a 2–0 victory. Cavallini made his World Cup qualifying debut in Canada's 8–1 loss to Honduras. Following that match, he declined a call-up from interim coach Colin Miller for the 2013 Gold Cup, citing personal reasons. Then coach Benito Floro gave an interview in October 2014 where he elaborated on Cavallini, saying that he had reached out to the player and had not heard back from him. Floro however pointed out that there is a place in the team for him in the future. In May 2015, Cavallini stated in an interview with Tenfield that he regretted becoming cap-tied to Canada. Despite his comments, Cavallini was called up to face Ghana in an October 2015 friendly. In an interview regarding his return to the national team, Cavallini stated that he did not say he would never play for Les Rouges again, and that his comments were wrongly translated. He mentioned that his lack of appearances were related to…

Cavallini plays as a forward. He is known for his aerial ability.

Cavallini was born in Canada to an Argentine father and an Italian mother. He played youth soccer in Canada with Club Uruguay, Weston Wolves SC, NY Hearts, and Clarkson Sheridan SC. He left Canada at age 16 and went to South America to develop his soccer talents. He began playing for Nacional's youth development squads in 2010 in Montevideo, Uruguay.