|Full name||Sebastião de Freitas Couto Júnior|
|Date of birth||June 8, 1992|
|Place of birth||Salvador, Brazil|
|Height||1.99 m (6 ft 6 in)|
|Playing position||CM Winger/Forward|
|2008||→ Itaúna (loan)|
|2012||→ Nacional-MG (loan)||8||(1)|
|2012–2013||→ Porto B (loan)||25||(2)|
|2012–2013||→ Porto (loan)||4||(0)|
|2018||→ Chongqing Lifan (loan)||12||(3)|
* Senior club appearances and goals counted for the domestic league only and correct as of 11 April 2019|
‡ National team caps and goals correct as of June 21, 2011
Born in Salvador, Bahia, Sebá started his career in the Brazilian team Cruzeiro, but he moved to Dragões FC Porto (mainly reserve team). Sebá is a midfielder who can play in all fronts of the attack, although he is more efficient on one side. With good ball striking and an advanced high speed, the Brazilian has yet to win on a consistent whole match and after a couple of matches in the Primeira Liga considered a new Hulk in power. Faced with increased competition, FC Porto however decided not to activate the clause allowing him to finally join the player and Estoril did not miss the opportunity. Playing in the UEFA Europa League just months after being promoted to the first division, the Lusitanian club take advantage of its close relationship with the Brazilian company Traffic (Agency of players) that owns part of the rights of the player, to complete his transfer.
On 19 August 2015, Olympiakos confirmed the signing of Brazilian forward Sebá as the Greek champion tries boosted its squad ahead of the start of the new season. Sebá signed a four-year contract for a reported fee of €1.7 million and joined the Piraeus club from Portuguese side Estoril. The 23-year-old forward followed the footsteps of his fellow Portuguese and former manager at Estoril, Marco Silva, who took over as Olympiakos coach in the summer . On 5 December 2015, he scored his first goal with a low finish after taking the rebound from Jimmy Durmaz shot in the Superleague Greece in a 4-3 away victory against Panthrakikos. On 7 January 2016, he scored in a 4–1 away win against Chania for the Greek Cup. He was named man of the match. On summer of 2016, Seba could be on the move as several clubs from Brazil have expressed an interest for his services. Moreover, he attracted interest from Mexican clubs in the past which is expected to be revived until the end of the window. Olympiakos seek for a fee in the region of €2 million for Seba and if an offer of that region comes in, then the Greek giants will accept the bid and the transfer will go through. Eventually he stayed in the club, as Paulo Bento is attracted from his abilities.
On 11 September 2016, he scored his first goal for the 2016–2017 season in a 6–1 home win against Veria. Despite his mediocre performance in the Superleague Greece, he scored repeatedly in UEFA Europa League. On mid April, reports in Turkey insist that Galatasaray will make a move to sign Olympiakos winger over the summer transfer window. Galatasaray has rubbished the rumours linking them with Seba, however reports in Turkey continue to link the Brazilian winger with Galatasaray. On 25 April 2017, Olympiakos winger faced a three-game suspension following his kick on Sergio Araujo in the semi-final of the Greek Cup against AEK. Seba is being accused for misconduct after his decision to kick AEK winger. He finished the 2016-17 season having three goals and 10 assists (1st in the League) and had a vital role in his club's seventh consecutive League title.
In contrary to an excellent 2016-17 season, Sebá didn't score a goal in 20 appearances in the first half of the 2017-18 season, and as he has hardly managed to be in Oscar García's choices, it is not excluded his retirement from the club as the winter transfer window is still open to Turkey, Russia and China. 
On 3 July 2018, Sebá joined Chinese Super League side Chongqing Lifan, on loan from Olympiakos. After six months he returned to Olympiakos and during the winter transfer period he signed a three-and-a-half years' contract with Al-Shabab FC for an undisclosed fee.
|Brazil||League||Cup||League Cup||South America||Total|
|FC Porto B||2012–13||Segunda Liga||25||2||—||—||—||25||2|
|Chongqing Dangdai||2018||Chinese Super League||12||3||0||0||-||-||12||3|
|Al-Shabab||2018-19||Saudi Professional League||9||3||1||0||-||-||10||3|
- "Seba, le nouveau talent brésilien sur les traces d'Hulk". www.footmercato.net. 25 November 2013.
- "Olympiakos unveils Da Costa and Seba as new signings". www.ekathimerini.com. 19 August 2015.
- "Πανθρακικός - Ολυμπιακός 3-4". www.contra.gr. 5 December 2015.
- "Τυπική διαδικασία η ρεβάνς, 4-1 ο Ολυμπιακός τα Χανιά στα Περιβόλια". He scored 2 goals against Astana on the Europa League www.sport24.gr. 7 January 2016.
- "ΤΟ... ΚΑΡΦΩΣΕ Ο ΣΕΜΠΑ! ΑΣΤΑΝΑ - ΟΛΥΜΠΙΑΚΟΣ 1-1!". olympiacos-blog.blogspot.com. 3 November 2016.
- "Χωρίς Σεμπά κόντρα στην ΑΕΚ". www.sport24.gr. 25 April 2017.
- "Ολυμπιακός: Φεύγει… ο Σεμπά!". www.onsports.gr. 11 February 2018.
- 重庆队官宣希腊劲旅前锋加盟 曾是保罗本托爱将 at sports.sohu.com 2018-07-03 Retrieved 2018-07-03
- Τέλος ο Σεμπά από τον Ολυμπιακό, πήγε στη Σαουδική Αραβία at www.sdna.gr Retrieved 2019-01-14
- "Sebastião de Freitas Couto Júnior". Soccerway. Retrieved 30 June 2017.
- "Sebastião de Freitas Couto Júnior". superleaguegreece.net. Retrieved 20 August 2017.
- Sebá at Soccerway