|Full name||Karl-Alfred Jacobsson|
|Date of birth||15 January 1926|
|Place of birth||Boston, United States|
|Height||1.86 m (6 ft 1 in)|
|* Senior club appearances and goals counted for the domestic league only and correct as of 31 March 2013.
† Appearances (Goals).
Jacobsson was born in the United States to a Swedish father and Italian mother. He spent five years in the country before his family relocated to Sweden. At age 16 Jacobsson signed for second tier team Gårda BK who offered to buy him a trench coat to lure the young player to the club. After his season at Gårda he made an early Allsvenskan debut with GAIS the following year but then chose to play for Redbergslids IK while doing his military service.
In 1949 he returned to GAIS where he was the club's top goalscorer in eight of the ten seasons he spent there. When GAIS celebrated its 100 year anniversary in 1994 he was voted "Player Of The Century" and at the end of 1999 he was also voted "Player Of The Millennium" by the GAIS supporters.
Jacobsson scored three goals in six games for the Sweden national football team. He was also selected in the preliminary squads for the 1950 and 1958 FIFA World Cup but was cut from the final squads both times. During that time period players were selected to the national team by a committee instead of the manager and people in Gothenburg felt that the Stockholm-based committee were biased in only selecting players from the area around the Swedish capital.
- "Profiler vi minns" (in Swedish). GAIS. Retrieved 31 March 2013.
- "GAIS - Spelarinformation för Karl-Alfred Jacobsson" (in Swedish). GAIS. Retrieved 31 March 2013.
- Bengt Forsman (13 January 2005). "Århundradets Gaisare" (in Swedish). GAIS. Retrieved 31 March 2013.
- Tony Balogh (15 January 2009). "GAIS störste fyller 83 år" (in Swedish). GAIS. Retrieved 31 March 2013.