Which football team won a La Liga trophy in the season that started on 29 August 1998 and finished on 20 June 1999?
1998–99 La Liga The 1998–99 La Liga season, the 68th since its establishment, started on 29 August 1998 and finished on 20 June 1999.
1998 Campeonato Argentino de Rugby The 1998 Campeonato Argentino de Rugby was won by the selection of Unione of Buenos Aires