And although he received a Premier League winners' medal after making the required five appearances in City's incredible 100 points campaign last term, Diaz only played a total of 15 senior games and has now sealed a dream move back to Spain with Real.
Sources told ESPN FC that Brahim was frustrated by a lack of first-team opportunities but Guardiola said young players must be patient at leading clubs.
The 19-year-old was highly rated by the club but has followed winger Jadon Sancho out of the Etihad after the England worldwide left in the summer of 2017, going on to make a huge impact at Borussia Dortmund.
"I never did. If Liverpool want to play quick, we want to play quicker". It shows the strength of the squad we have here, how good the players are.
"Always we try to put water on it, but it's not necessary here".
"We did with Brahim everything that we did with Phil [Foden] and Jadon [Sancho] - the only one who has made a decision to stay is Phil", said the former Barcelona coach. "If you want to stay, stay".
"I'm not the greenkeeper", Guardiola added. We want to cut the field all the 10 years, it's better conditions for both teams, when this happens, you do the best for opponents.
Rotherham's record defeat in this cup tournament was 6-0, but a new one was set by Sane who shoved off two defenders near the box before cutting onto his right foot to get a shot away, which deflected past a hapless Rodak. Real Madrid is not a bad step, so hopefully he can take the minutes he wants and that he didn't want here for many reasons. You have to do the best for the opponents, for the game, respect the game and the rules.
City's Under-21 side face Rochdale in the third round of EFL Trophy on Tuesday, with the competition allowing Premier League youngsters to face off against lower-league opposition in competitive action. "I speak [about this] many times, on the pitch it speaks for itself". I have many issues to think about.