Jurgen Klopp is wary of Sadio Mane's lack of rest heading into the new season, with the Liverpool star's campaign yet to come to an end.
On the back of a gruelling 2018-19 campaign, Premier League Golden Boot joint-winner Mane has scored three goals to help Senegal to the Africa Cup of Nations final.
Friday's showdown with Algeria in Cairo ends a season which has lasted close to 12 months for the 27-year-old, who also featured for his nation at the 2018 World Cup.
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Liverpool's season starts on August 4 with the Community Shield clash against Premier League champions Manchester City at Wembley.