*Club domestic league appearances and goals, correct as of 22 November 2024 (UTC) ‡ National team caps and goals, correct as of 22:33, 21 November 2024 (UTC)
Sema got promoted to the IFK Norrköping first team as a 19-year old in 2013. However, he spent the entire season on loan to IF Sylvia[2] and did not get his contract renewed after it expired at the end of the season.[3]
In January 2016, Sema signed for Östersunds FK in the Allsvenskan,[5] where he would have his major breakthrough. Sema won the 2016–17 Svenska Cupen with Östersund, assisting three of their four goals in the final,[6] and later played a major role in their 2017–18 UEFA Europa League campaign. On 22 February 2018, Sema scored a goal in a 2–1 win against Arsenal in the round of 32. Despite this, Östersund were eliminated from the Europa League after losing 2–4 on aggregate.[7]
Watford
On 4 July 2018, Östersunds FK chairman Daniel Kindberg revealed that Sema was close to signing for Premier League club Watford on a five-year contract.[8] The next day, Watford confirmed the signing.[9] He scored his first goal against Bournemouth in January 2019 in a 3-3 draw.[10] He was integral in helping Watford get promoted back to the premier league in the 20/21 Season and scored six goals and got six assists.[11] On 6 February 2024 Sema made his 150th appearance for Watford in their FA Cup 4th Round Replay defeat to Southampton.
Loan to Udinese
On 22 August 2019, Udinese Calcio signed Sema on a season-long loan from Watford.[12] He made his Serie A debut for Udinese on 25 August 2019 in a 1–0 win against A.C. Milan.[13]
Sema was an unused substitute in the two-legged playoff against Italy in November 2017, which Sweden won, and therefore qualified for the 2018 FIFA World Cup. Despite featuring in commercials with the rest of the Sweden squad before the World Cup, Sema was eventually left out of the World Cup squad.[15][16]
Sema is known for his hard work, a trait that has made him very popular with Watford fans. He likes to dribble past opponents to get into good crossing positions. He is mainly a winger but has occasionally been used at left back or wing back, due to his ability to work hard and track back defensively. He is affectionately known as King Ken by Watford fans.
Personal life
Sema was born in Sweden to Congolese parents, and his brother Maic Sema is also a footballer.[18] He speaks with a stammer, and after a video went viral of him doing a post match interview with Watford TV, he was praised as a role model for children and adults with speech impediments.[19][20]
Career statistics
Club
As of match played 22 November 2024
Appearances and goals by club, season and competition
^"Comunicato Ufficiale N. 216" [Official Press Release No. 216] (PDF). Lega Serie A. 10 March 2020. p. 3. Archived from the original(PDF) on 19 May 2021. Retrieved 12 July 2020.