Gyökeres made his professional debut with Swedish side Brommapojkarna in 2015, making over fifty appearances before joining Brighton & Hove Albion three years later.
[10] The following year, with the club having suffered relegation the season before, Gyökeres scored seven goals to help Brommapojkarna secure promotion back into the Superettan.
[11] He later helped Brommapojkarna into the semi-finals of the Svenska Cupen when he scored the winning goal in the quarter finals against top division side, Elfsborg.
[31][32] He scored on his first appearance at St Andrew's netting the first in an eventual 2–0 victory over Sheffield Wednesday on 27 January, his first league goal in English football.
[37] In the 2022–23 Championship season, he was named as the player of the month in November after scoring four goals in four games, leading Coventry to four straight wins during that period.
[43] On 21 September, Gyökeres made his debut in European competitions, starting and scoring in a 2–1 victory away at Sturm Graz, in the UEFA Europa League group stage.
[44] On 26 October, he was shown the first ever red card of his club career, seven minutes into Sporting CP's visit to Raków Częstochowa in a UEFA Europa League group stage match.
On 5 May, Sporting mathematically secured their 20th Primeira Liga title, following Benfica's defeat to Famalicão,[54] and Gyökeres won the Bola de Prata award, after he finished his first season at the club as the Primeira Liga Top scorer with 29 goals, scoring a brace on Sporting's final league match of the season, against Chaves on 18 May,[55] to become the second Swedish player to win the top scorer award after Mats Magnusson in 1989–90.
[58] Gyökeres made his return from injury on 3 August 2024, assisting twice in the 4–3 loss to rivals Porto in the 2024 Supertaça Cândido de Oliveira.
[62] On 1 November, Gyökeres scored four goals in a single match during a 5–1 rout against Farense, with his first-half hat-trick tying Beto Acosta's feat reached in the 2000–01 campaign.
His return of three goals later saw him share the Golden Boot award with England's Ben Brereton and Ryan Sessegnon, and the Netherlands' Joël Piroe.
[70] On 8 January 2019, Gyökeres made his senior international debut for the Sweden men's national football team in a 1–0 loss against Finland.
[72] In October 2021, after scoring 9 goals in 11 EFL Championship games for Coventry, Gyökeres was called up to the Sweden national team to replace Zlatan Ibrahimovic to face Kosovo and Greece for the 2022 World Cup qualifiers.
[73] On 16 October 2023, Gyökeres had given Sweden a 15th-minute lead before Romelu Lukaku equalised in an away game against Belgium, when the UEFA Euro 2024 qualifier was abandoned at half-time following a Islamist-related fatal shooting in Brussels that targeted and killed two Swedes outside the stadium.
[76] Gyökeres is known for his physicality, pace and stamina,[77][78] using his acceleration to exploit space behind defenders and his strength to act as a target man in aerial duels and ground battles.
[79] He excels in both aerial duels and on the ground, using his strength and size to shield the ball and link play, often contributing by running the channels or delivering crosses, while also being capable of creating chances through sharp turns and flicks in one-on-one situations.
"[86][87] On 18 December 2023, in the flash-interview for Sport TV after a 2–0 league victory at home to rivals Porto, he was questioned about his usual goal celebration and answered: "[laughs] I thought you'd ask me sooner.
[94][95] He was formerly in a relationship with fellow professional footballer Amanda Nildén,[96] who joined the Brighton women's team when Gyökeres moved to the club in 2018.