The day before he coached Manchester City against rival Manchester United, Pep Guardiola guided his team through a practice at NRG Stadium.
Guardiola marveled at the grandiose size of the Texans' home and wondered if all the seats would be filled Thursday for the first Manchester Derby ever played outside of England.
The official attendance was about 5,000 fans short of a sellout, but Guardiola still was surprised that 67,401 people showed up to watch a friendly.
"Yesterday when we came here for the training session I saw the stadium and said, 'It's impossible.