In 1984–85, Eriksen joined FC Mulhouse in the French Ligue 2, finishing second in the goal scoring charts as the club narrowly missed on promotion, falling short in the playoffs.
With the former, he led the scorers list in his first two seasons, notably scoring 36 in 34 games in 1987–88 (second position overall, only two points behind champions Neuchâtel Xamax).
He was selected for the squad that competed in the 1986 FIFA World Cup, appearing as a substitute against West Germany (2–0 win, one goal)[1] and Spain (5–1 round-of-16 loss).
[2] Eriksen was also picked for UEFA Euro 1988 in West Germany, playing twice in an eventual group stage exit (two 2–0 losses), starting against Italy.
After ending his career, Eriksen suffered Alzheimer's disease, and lived his last three years in a nursing home in Svendborg.