Why have things suddenly become more difficult for Liverpool?

Liverpool manager Jurgen Klopp has some problems which need solving after a third successive match without victory. Picture: Peter Powell/PA

Liverpool’s defeat at Southampton meant Jurgen Klopp’s side have gone three Premier League matches without a victory for the first time since February 2017.

The loss came on the back of draws against struggling West Brom and Newcastle and the four-point lead the champions held at Christmas has evaporated.