Bayern were held to a 1-1 draw by Augsburg on Tuesday, losing their 100 per cent Bundesliga record, but Portugal midfielder Sanches impressed once more.
But the youngster appears revitalised under new head coach Niko Kovac and produced another strong showing after scoring on his return to Benfica in the Champions League last week.
“He has given himself outstanding chances with his irresistible start to the season,” Hummels told reporters after a match in which Sanches and other Bayern players were guilty of missed chances against Augsburg.
“Of course, he had to score, but that happens. He has an incredible power.
“I think I had a decent game. I felt very good. I have missed some chances and I hope it will be better in the next game because the most important thing is that we win,” he told reporters.
“[Kovac] gave me good instructions. With the ball and without the ball, he said that I can also stay in the space in which I am able to score. But not only the coach, also my team-mates give me good tips and confidence.”