Southampton boss Ronald Koeman says next season will be the "most spectacular" Premier League campaign ever seen.

Koeman has warned Jose Mourinho that he faces a difficult job bringing title success back to Manchester United.

He said: “It must have been a disappointment for Louis van Gaal that he was not able to guide United into to the top four.

“But Leicester have made the impossible possible and that is the biggest of wake up calls for the big clubs. They will all need to react - and we all know their budgets are almost unlimited.

“With Southampton, we beat every big club this season at least once.

“We only finished only three points behind Man City and Man United and we finished 13 points ahead of Chelsea. So we performed above the maximum of what people thought was possible.

“It is only going to be more exciting and competitive. Next season will be the most spectacular fans have ever witnessed."