Brendan Rodgers believes it will take time for Manchester City boss Pep Guardiola to get used to the intensity of the Premier League.
Benfica boss Rui Vitoria says his players are treating Tuesday's Champions League crunch match with Napoli like the final.
Arsene Wenger has taken a strong squad to Switzerland for their Champions League clash with Basel -- but has hinted he may make several changes.
Leicester City have been unable to string good performances together this season but a win at Porto this week could carry over into the league.
Napoli coach Maurizio Sarri says his team are in Portugal to beat Benfica on Tuesday night, even if a draw would be enough to take them through.
"It's normal, if you go to a new club, a new country, you need to get to know the language, the coach, the philosophy, the squad," said Xhaka.