A few more quotes from Guardiola's press conference:
“The reason why [he didn't feature against Boro or Monaco] is because he didn’t play games because he was injured,” Guardiola Said. “He was a long time injured and sometimes he has arrived and been injured again.
“It was a risk, I wanted to be sure.
“Now he is going to the national team to play more minutes. I wanted to be sure he can compete from the beginning, don’t waste one game because he cannot play 90 minutes, or maybe when we play the last 15, 20 minutes he’s injured again.
“I would like a little bit more time to be sure. But, of course, we are so happy he is fit.
“It was our desire from the beginning of the season but he was not fit. There are a lot of processes, a lot to do when you are not involved.
“Sometimes you need to see he understand that to do that. The first step is to be fit to make a training session and in the last two weeks he’s been there.”