| Birthdate | 1994-02-11 | Hometown | Danderyd, Sweden |
| Position | F | Shoots | L |
| Height | 6'1" | Weight | 195 lbs |
History
2009-10: Skated in 8 games for SDE Hockey U16 in the Swedish U16 league and scored 5 goals while picking up 2 assists for 7 points. Was awarded a silver medal in the U16 Division. Also appeared on SDE Hockey's U18 team in the J-18 Division-1, but stats are unavailable.2010-11: Played on SDE Hockey U18 in the J-18 Elite Division and was tied for third-most points on his team with 26. In 32 games, Keussen had 14 goal and 12 assists while picking up a team-leading 131 penalty-minutes.
2011-12: Moved to the United States and attended Kents Hill School. In 28 games, Keussen scored 17 goals and had 16 assists.
2012-13: In his second season with Kents Hill School, Keussen managed 12 goals and 28 assists for 40 points in 34 games.
2013-14: Lead the New York Apple Core EHL team in regular-season points. In 43 games, he totaled 17 goals and 34 assists for 51 points. Also managed 135 penalty-minutes. In the playoffs, Keussen scored 2 goals in as many games while also picking up 26 post-season penalty-minutes. Keussen was named to the EHL All-Star Team.
2014-15: -