And_One, if you meant me, I'm installing from scratch on a clean db, and there's no pre defined sport type there.
I don't think it's a bug, but with usability in mind, maybe a short list of 10 sports would show users what to do in case they have to add one.
After creating sport type COM_JOOMLEAGUE_ST_SOCCER, I've created a season, league, event types, positions, clubs, teams and persons.
Then a project, assigning to it positions and teams, then creating rounds and only one match. On this match, after result, I've added 2 players, one per team, and then events.
All seeemed well, so I've created a menu page for a team's roster and a player page: clicking on player's link on menu and on roster page, leads to a 1064 (blank)page.
After adding the results-ranking page all goes well and players become visible.
I'm sending you the export attached in case it can be useful.
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