The Spaniard is in charge of the Bundesliga leaders and had been linked with the Reds and Bayern Munich.
Bukayo Saka, Gabriel Martinelli and Gabriel Magalhaes were not involved during the international break
Mikel Arteta, Pep Guardiola and Jurgen Klopp will be speaking today as the Premier League returns this weekend
Alonso had the choice between Liverpool and Bayern Munich, but will remain with Leverkusen