When you run out of excuses.

https://www.90min.com/posts/6464675-pep-guardiola-claims-manchester-city-don-t-have-the-money-for-january-reinforcements/partners/45303

poor Pep, now he can only spend 50m on a defender instead of 100m :(

they have already spent big

Maybe its ffp that prevent them from spending.