The 22-year-old scored his side’s second goal in the 83rd minute after a wonderful shot outside the 18 yard box.
Gornik Zabrze took the lead in the 14 minute of the first half before Marcus Vinicius equaliser for Arka Gdynia in the 48 minute of the second half.
The former Barcelona player, Moro as he is fondly called played an integral part in Gornik Zabrze achievement featuring in 22 games this season.
The win ensured Gornik Zabrze finish the Poland First Division league with 53 points, while Arka Gdynia collected 37 points after 36 matches.
Meanwhile, Alasana Manneh and his side Gornik Zabrze will on Saturday play Zaglebie in a playoff match.