Argentina striker Aguero scored City's dramatic last-gasp title-winning goal in 2012 in his first season with the club.
'I totally agree with Guardiola (on protection),' Warnock said.
"I don't know", said Guardiola at his press conference on the eve of their away trip to Premier League strugglers Cardiff.
Since joining City from Atletico Madrid in 2011, the 30-year-old Argentine has helped the club win three Premier League titles and three League Cups. "He has a little problem in his ankle, his foot", Guardiola said.
Having been viewed as the ideal replacement for the departed Philippe Coutinho, Fekir took firm control of Lyon's victory at the Etihad, laying on an assist for the opening goal of the match before firing one of his own past Ederson to put the French side in control with a fine finish. "My idea was being here for 10 years". I've been here for seven years [and] it's going to be 10 when the contract expires.
Vietnam President Tran Dai Quang has died
The official Vietnam News Agency says Quang died at the 108 Military Hospital in Hanoi on Friday due to a serious illness. Vietnam's constitution provides for the vice president to perform the president's duties should he be unable to work.
The arrival of the attacker on Merseyside seemed inevitable during the summer, with the deal looking all but complete ahead of the World Cup, but for reasons which remain unknown to a full extent the move did not go through. I'm very happy because they have treated me very well since the first day I got here.
"He is important for the club, not just for the team".
"It's true that we've got a lot of young talent, that in the future can make the difference".
Director of Football Txiki Begiristain added: "We are delighted that Sergio is extending his stay at Manchester City". "At the same time, the youngsters are quite developed already, like Leroy, Raheem, Bernardo [Silva] and Gabriel".