Southampton manager Ralph Hasenhuttl has claimed the Premier League title is the 'hardest' trophy to attain before hosting quadruple-chasing Liverpool.
Jurgen Klopp's Reds travel to St Mary's on Tuesday evening bidding to keep their hopes of overhauling league leaders Manchester City alive.
The Merseyside club have already lifted the Carabao Cup and FA Cup this season and later this month will face Real Madrid in the Champions League final.
But Hasenhuttl considers top-flight glory - which Liverpool have managed only once in 32 years - to be the greatest achievement.