Per Henry Karl Sletsjøe

Sletsjøe is 1.89 m tall. GAIS made him a permanent signing from Rosenborg BK in February 2026, tying him down until the end of the 2028 season.

He came up through Djurgårdens IF's youth ranks before Djurgården let him go in 2018, and the years that followed were a tour of Sweden's lower and middle tiers — IFK Stocksund, Syrianska FC, IF Sylvia — before he settled at IK Brage for two seasons, making 79 appearances. Despite a Swedish father and Norwegian mother giving him dual citizenship, he has not been capped by either country at any level.

At GAIS he has made himself a regular in midfield, with 20 appearances across all competitions and three goals as of late August 2026, including strikes against Halmstads BK and Brommapojkarna in the league. In March he scored the winner in a 3–2 Svenska Cupen victory over Sandvikens IF. His underlying numbers — 26 tackles, 13 interceptions and 43 recoveries — point to a player doing the defensive side of the job as much as contributing goals, reflected in an average FotMob rating of 6.85. After a 2–0 win over Elfsborg in April, manager Fredrik Holmberg described him simply as "very good".