[3] He subsequently represented his hometown club América-SP in 2013 Copa São Paulo de Futebol Júnior, while still owned by Tanabi.

[6] He made his maiden appearance for the club eight days later, coming on as a second-half substitute in a 1–3 home loss against Santo André.

[7] Shortly after making his debut for Catanduvense, Luan moved to Grêmio and returned to youth football; he later had 50% of his federative rights bought for just R$ 300,000.

[10] Luan scored his first goal in the Brazilian football top division on 17 August 2014, netting the first through a penalty in a 2–0 home success over Criciúma.

[12] In the 2015 Campeonato Brasileiro, he scored ten goals to help his side finish third; highlights included braces against fierce rivals Internacional (5–0 home win)[13] and Palmeiras (2–3 away loss).

[21] Despite being a regular starter in the 2020 Campeonato Paulista, Luan lost his starting spot after the departure of manager Tiago Nunes, and was constantly an unused substitute in the following years.

[27] In Brazil's quarter final clash with Colombia, Luan scored the second goal of the match in an eventual 2–0 win, and finished the tournament as a starter.