There is also a mutual friendship between fans of Gryf Słupsk and Lechia Gdańsk. Gryf Słupsk are also from the Pomoranian area of Poland. The two teams have rarely met competitively due to Gryf often playing in the lower regional divisions. Gryf set up the Amber Cup Tournament, an indoor football tournament which takes place during the winter break. Gryf Słupsk hosted the tournament and have featured many times, winning in 2009, before the tournament was moved to Gdańsk due to the rise in popularity, and was hosted by Lechia Gdańsk from 2016 to 2018.