Manchester City have suffered a hammer blow with the news of Nathan Ake's injury.
The Dutchman was injured on international duty with his nation against Spain in Amsterdam.
He came off after six minutes clutching his hamstring, which could indicate a long layoff.
While Ake is not first choice at City when everyone is fit, his versatility is key to their squad depth.
Losing him for several weeks would be a big blow for manager Pep Guardiola as he aims to challenge for the Premier League and Champions League trophies.
Ake arrived at City in the summer from Bournemouth.