Basle face a race against time to get their 'disgraceful' pitch in shape for the Champions League tie against Manchester United next week.
The surface at St Jakob-Park cut up badly during Northern Ireland's World Cup play-off against Switzerland on Sunday night following a day of torrential rain in the Swiss city.
Basle have 10 days before hosting United in a Group A tie next Wednesday, but they also have a home game against Sion at the weekend which is likely to cause further damage.
Northern Ireland midfielder George Saville was fiercely critical of the pitch that made it difficult to play passing football.