Basel nailed Swiss soccer league and cup double crowns on Sunday after wrapping the league with a 2-0 victory over runners-up Young Boys in a decisive final day clash in Bern.

Goals from Australia international Scott Chipperfield and midfielder Valentin Stocker gave Basel their 13th league title just days after they drew level on points with their Bernese rivals for the first time this season.

Both will play Champions League, while Zurich side Grasshopper and Lucerne claim Europa League slots after finishing third and fourth respectively.

Young Boys held a seemingly unassailable six-point lead just over a month ago and squandered domination of Switzerland's top division since last July.

Basel's form has surged since Fulham effectively knocked them out of the Europa League in December, under the guidance of their new coach this season, former Bayern Munich player Thorsten Fink.

The northern club won the cup trophy a week ago, beating second division Lausanne 6-0.