Guilherme Sucigan Mafra Cunha (born 20 April 2004), commonly known as Guilherme Biro or simply Biro is a Brazilian footballer who plays as a side midfielder or wing forward for Corinthians. He is a left footed player, but he has been successfully deployed on both flanks, also playing as a left-back on a number of occasions.^[2]

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Guilherme Biro

Guilherme Biro with Corinthians in 2022
Personal information
Full name	Guilherme Sucigan Mafra Cunha[1]
Date of birth	(2004-04-20) 20 April 2004 (age 19)[1]
Place of birth	Campinas, Brazil
Height	1.73 m (5 ft 8 in)[1]
Position(s)	Midfielder / Forward / Defender
Team information
Current team	Corinthians
Number	14
Youth career
2016–2022	Corinthians
Senior career*
Years	Team	Apps	(Gls)
2022–	Corinthians	1	(0)
International career‡
2019	Brazil U15	6	(0)
2021	Brazil U17
2023	Brazil U20	8	(1)
2023	Brazil U23	5	(1)
Medal record Men's football Representing  Brazil South American U-20 Championship Winner 2023 Colombia Pan American Games Winner 2023 Santiago
*Club domestic league appearances and goals, correct as of 25 August 2022 ‡ National team caps and goals, correct as of 25 August 2022

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In December 2020 Guilherme Biro signed his first professional contract with Corinthians until the end of 2023.^[3] He made his first team debut on 2 July 2022 in 0–4 away defeat against Fluminense in Série A.^[4]

Guilherme Biro was called up to the under-15 team in 2019, and featured in the 2019 South American U-15 Championship.^[5]

Brazil U20

• South American U-20 Championship: 2023

Brasil U23

• Pan American Games: 2023