Affane, who was playing for the Division 3 team Lärje-Angereds IF, agreed to join Chelsea in January 2010, leaving Lärje-Angereds IF to head to London ahead of interest from some of Europe's biggest teams including AC Milan, Juventus, Real Madrid, Manchester United and Manchester City.
Chelsea
He missed much of his first year in England due to injury, but has pressed on towards the end of the season and put a run of games together in the Under-18s. He made his reserve debut in April 2011.
On 30 August 2012, Affane signed a season-long loan deal with the Dutch side Roda JC. On 1 September 2012, Affane made his debut for the club against Willem II where he came on as a substitute in the second half and provided the assist for Krisztián Németh's goal and also won the Man of the match. Roda JC went on to win the match 3–0 and this was their first league win in the 2012–13 season. He started his first game for Roda in their next fixture on 16 September 2012 away to AZ Alkmaar, where the game ended in a 4–0 loss. On 25 September 2012, Affane made his KNVB Cup debut for Roda, where they lost 1–0 at home to PEC Zwolle in the extra time. On 30 September 2012, he scored his first goal for Roda in an Eredivisie match where they lost 3–2 to Groningen. He came in as a substitute in the 71st minute and awarded the team with a hard shot from 22 meters and scored the equalizer from a pass by Abel Tamata, 2–2 in the 78th minute. On 20 October 2012, Amin again came in to play as a substitute in the second half of the match where they were drawn 1–1 to FC Twente and assisted the only goal by them, which was scored by Guus Hupperts, while Affane's low cross was missed by Twente goalkeeperNikolay Mihaylov. On 11 November 2012, Affane set up their two goals which were scored by Senharib Malki and Bart Biemans, both from corners in a 5–2 away loss against Feyenoord at De Kuip. Amin Affane returned to Chelsea after seeing the loan spell at Eredivisie side Roda JC cut short. He initially saw plenty of first-team football at Roda, but fell out of favour in February and has subsequently been deemed surplus to requirements.
On 27 May 2013 it was announced that Affane had signed a three-year contract with Energie Cottbus. After Cottbus were relegated from the 2. Bundesliga at the end of the 2013–14 season, he signed for VfL Wolfsburg II.
AIK
On January 5, 2016, Affane signed a three-year contract with Swedish club AIK Stockholm.
International career
Affane has represented Sweden at U17 level and U19 level. He is also eligible for Morocco.
