Lyanco

Early career

Born in Vitória, Espírito Santo, Lyanco started his youth career at Botafogo.

São Paulo

In January 2015, he signed a four-year deal with São Paulo. Lyanco made his professional debut as a substitute in a 2–1 win against Atlético Paranaense. He started and played the 90 minutes in his third professional match, a 0–0 draw against Joinville.

Torino

On 29 March 2017, it was announced that Lyanco had signed a five-year contract with Serie A club Torino, for a reported fee of €6 million plus bonuses. He immediately moved to Turin to begin training with the team, and facilitate his acclimatisation to the club, at the orders of Siniša Mihajlović. His league debut came on 20 September 2017 in a 3–2 victory over Udinese Calcio.

Bologna (loan)

On 31 January 2019, Lyanco joined Bologna on loan until 30 June 2019.

Southampton

On 25 August 2021, Lyanco joined Southampton on a four-year deal for an undisclosed fee. On 21 September 2021, he made his first appearance for Southampton in the EFL Cup against Sheffield United which ended 2–2, with Southampton advancing 4–2 on penalties. On 30 October 2021, Lyanco made his first Premier League appearance, replacing Oriol Romeu in Southampton's 1–0 win against Watford at Vicarage Road. He was forced off with a hamstring injury in the first half of Southampton's FA Cup match against Coventry City on 5 February 2022, and was expected to be sidelined for up to 12 weeks. On 16 April 2022,…

On 28 January 2016, Lyanco announced on his official Twitter account that he had agreed with officials from the Football Association of Serbia, to represent Serbian youth teams at international level. He featured for Serbia U19 in the qualifiers for the U19 European Championship. Subsequently, he accepted a call up by Brazil U20 boss Rogério Micale and switched his allegiance back to Brazil.

Lyanco is of Portuguese and Serbian descent. His maternal family has Portuguese roots through his mother Carla. Lyanco's paternal grandfather, Jovan Vojnović, was an ethnic Serb born in the part of the Kingdom of Yugoslavia that is now in present-day Serbia and moved to Brazil at the age of seven, during World War II.

Lyanco is married and has a daughter. In May 2024, he revealed that he suffers from anxiety and panic attacks, with manager Russell Martin praising him for opening up about his mental health struggles.