The City winger also found the net in the first game of the international break against the Republic of Ireland, where he shone in a more central, attacking role.
He followed that up against the Finnish with another energetic, inventive display.
“I didn’t watch the first game,” said Guardiola. “I saw the second one. I saw Jack [played] really well in the position behind the striker in a more central position.
“I was very pleased, (all three of our England players) came back not injured, fit and good.”
And with Grealish playing as a more traditional No.10 for the Three Lions, the City boss says he is well aware of his versatility if and when needed.
“Yeah, he can play [as a No.10], we know it,” said Pep. “He was an exceptional player at Aston Villa and an exceptional player here.
“He made half a good first season, second was unbelievably excellent season and last season was not as good.
“And this season start apart - from the niggles - really good. Hopefully he can do a good season.”
Watch the second part of the press conference in the video above...