Sane impressed throughout the season, having scored 10 goals and provided 15 assists in 28 league appearances.
Sane had a spectacular season for Pep Guardiola's City side, winning the Premier League title by storm and destroying Arsenal 3-0 in the Carabao Cup final to secure a double trophy-winning season for the Citizens.
He will, however, play no part for his country in Russian Federation this summer after being cut from coach Joachim Low's 27-man preliminary party.
Low also revealed how he informed the four players, namely Sane, Jonathan Tah, Bernd Leno and Nils Petersen, of his decision to cut them from Germany's final World Cup squad on Monday morning, and that it was not an easy day for him. Draxler, Reus and Muller are set. "If it was a 100 metre race, it would have been a photo finish".
Sane could yet go to the World Cup, however, if another attacker gets injured before their first group game, with Low allowed to make a change up to 24 hours before kick-off against Mexico on June 17.
Do you think Low made the right decision in snubbing Sane?
Sane, who joined the English champions in 2016, had been a surprise addition to Germany's Euro 2016 squad two years ago but this time he was overlooked by Loew, who opted to take the more physical Julian Brandt to Russian Federation instead.