It's really crazy how Manchester City already successfully sign Gvardiol, they already have so many world class defenders e.g. Akanji, Stones, Walker, Cancelo, Ake, and Dias. Is there any striker can destroy these defenders? I really doubt it. There's no loophole in Manchester City's squad, their current squad remind me with Barcelona squad in 2008/2009 where it's one of the best squad in football history.
Guardiola is likely to make Nathan Ake a cover for Gvardiol when he officially joins the Man City squad. A step that Pep must take to maintain consistency until the end of the season if you don't want to lose points at a sacred time like the end of the season. With his new recruit, he will add options to rotate his players and anticipate injuries to players in the squad. Arsenal and Man United have so far become strong candidates to compete with Man City in the English Premiere League. Other clubs are of course also good but not at the level of challenging Man City.
A surprise came from Pep because long before we only predicted Pep would be looking for a replacement for Gundogan, not a new defender. So far Neymar has also been linked with them but Pep has asked for a pay cut if he wants to join. I remember AC Milan in the 2000-2008 period when they had a number of star players on all fronts in their squad.