2016–17 saw the improvements that fans had been anticipating. With players such as Haraslín as well as the internationally experienced players who joined the season before had now settled into the club. New arrivals such as twins Marco Paixão and Flávio Paixão, as well as Rafał Wolski arriving from Fiorentina and Dušan Kuciak from Hull City. The regular season saw Lechia winning all but three of their home games, and were top of the table at the end of 10 of the game weeks. Lechia ended the regular season in fourth. In the last home game of the season against Pogoń Lechia celebrated the careers of Piotr Wiśniewski and Mateusz Bąk. Both players had played over 10 years for Lechia, while Lechia was the only professional club Wiśniewski played for. Both players came on as substitutes in the 4–0 win over Pogon, with Wiśniewski scoring the final goal of the game, and Bąk made an important save to keep a clean sheet for the team. Going into the final game of the season Lechia was in fourth place, two points behind Legia who were top, Lechia knew that with a win away to Legia they had a great chance of winning their first-ever Ekstraklasa title. The game finished 0–0, and due to Lech and Jagiellonia drawing with each other, Lechia did not gain any positions and finished fourth with the same points as Lech and Jaga who finished in second and third. For the third season in a row Lechia once again missed out on qualification for the Europa League by a single position, this time due to their main rivals Arka Gdynia getting the place from winning the 2016–17 Polish Cup. Marco Paixão finished the season as the top scorer in the league with 18 goals, an award which was jointly shared with Marcin Robak.