Before the 1998–99 season Lechia had their 2nd merger within 3 years, this time merging with Polonia Gdańsk to create Lechia-Polonia Gdańsk taking Polonia's place in the 2nd division. This merger lasted 3 years, with the team's fortunes slowly deteriorating, finishing 7th in 1998–99, 14th in 1999–2000, and 19th in the 2000–01 season, and thus suffering another relegation to the 3rd division. In the 2001–02 season Lechia–Polonia competed in the 3rd division, while a newly formed Lechia Gdańsk team was formed in the 6th division. After the 2001–02 season Lechia–Polonia dissolved, resulting newly formed Lechia becoming the continuation of the original club, while Polonia Gdańsk having already reformed in the sixth tier in 1999.