Gustavo Sauer

Early career

In February 2016, Gustavo was loaned to K League Challenge side Daejeon Citizen for the 2016 season. Previously, Gustavo had been on loan at fellow Brazilian sides Metropolitano and Paraná in 2015, and Armenian side Gandzasar Kapan in the latter half of 2014.

Botev Plovdiv

On 25 August 2017, Gustavo joined Botev Plovdiv. Gustavo made a debut on 21 September during the 1-3 away victory in the 1/16 final of the Bulgarian Cup against Lokomotiv Gorna Oryahovitsa. On 24 September Gustavo played his first game in First Professional Football League (Bulgaria) and scored a goal for the 3-0 win in the derby game against Lokomotiv Plovdiv. On 11 May 2018 Gustavo had a controversial performance during the 2-1 win over Beroe Stara Zagora. He assisted for the first goal of João Paulo da Silva Araújo but later on was sent off for committing a brutal foul against Matheus Leoni. After a long goal-drought, on 25 August 2018, Gustavo scored in the last minute for the 0-2 away win over FC Vitosha Bistritsa.

As of match played 2 November 2025

His younger brother Gabriel Sauer is also a footballer. A centre-back, he was also groomed at Joinville.