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 Copa Interamericana The 1998 Copa Interamericana was the 18th and final staging of the Copa Interamericana. The final took place between D.C. United and Vasco da Gama and was staged over two legs on 14 November 1998 and 5 December 1998.