FC Sion they made a major coup by signing Gennaro Gattuso and Kyle Lafferty, both via free transfers. However, the club had a disappointing season which saw them change coaches three times before settling on Gattuso to finish the season, ending in third place. Sion held the distinction of having never lost a domestic cup final, with 13 wins in 13 appearances in the Swiss Cup, until a defeat by Basel in the 2017 edition. Sion play their home matches at the multi-purpose Stade Tourbillon, which has a capacity of 14,500. It was originally constructed in 1968, and was renovated in 1989
Sion, Switzerland recreational space in the municipality increased by and is now about 4.47% of the total area. Of the agricultural land, is used for orchards and vineyards, is fields and grasslands and consists of alpine grazing areas. Since 1980 the amount of agricultural land has decreased by . Over the same time period the amount of forested land has increased by . Rivers and lakes cover in the municipality. Sion has an average of 82.6 days of rain or snow per year and on average receives of precipitation. The wettest month is December during which time Sion receives an average of