After Ciaran Clark had been adjudged to have deliberately handballed in the box inside the first six minutes at Carrow Road, Robert Snodgrass stepped up to face Guzan. But the United States international sprang to his left to palm away Snodgrass's effort.
The save earned some rather succinct praise from a former Villa shot-stopper:
Guzan!!!— bradley h friedel (@friedel_b) September 21, 2013
The penalty denial proved especially crucial for Villa, who took the lead 25 minutes later through substitute Libor Kozak.
Kozak had only just replaced Christian Benteke, who had limped off with a groin strain.
Norwich strived for an equaliser in the second half, but Villa held on for a confidence-boosting three points, thanks in part to a spectacular late save from Guzan to deny Gary Hooper.
(GIFs via @SBNation)