This is the 12058th most frequent Polish word.
ligowego
"Ligowego" means "league-related" or "pertaining to a league" in English.
Here, "ligowego" acts as an adjective modifying "finał" (final), specifying that the final is related to a league competition.
Bilety na ligowego finał już się wyprzedały.
Tickets for the league final have already sold out.
Here, "ligowego" functions as an adjective that modifies "meczu" (match), indicating that the match pertains to a sports league.
Piłkarz zdobył hat-trick podczas ligowego meczu.
The soccer player scored a hat trick during the league match.
In this sentence, "ligowego" describes "spotkania" (encounter), showing that the encounter is related to a league.