22-year-old midfielder at the end of last season was the best in the Premier League young player of the year, but this season has not a single game is not started in the starting lineup City.
According to Guardiola, he expects Sana "the right reaction".
"He will be very important for the club.. This test for him, and not only for him - for all ".
"We will judge the season after 11 months, not three weeks. Leroy is a great guy. I can not say anything bad about him ".
"Sanya should react properly to what is happening. He is a real professional and loves challenges.. Some players slowly roll into the season, others - slow down in the end ".
"We must not forget that he is still 22 years old. Bernard Silva, Gabriel Jesus, Raheem Stirling are also very young. Leroy will grow, the main thing is to try to help him, "said Guardiola.
In the season 2017-2018, Sana scored 10 goals and 15 assists in the Premier League.