Ilkay Guendogan scored twice .
Kevin De Bruyne netted a heavenly free kick in a wonderful show from the home side that finished Barcelona 's 100 percent record and made good looking revises for City 's 4 - 0 drubbing at the Nou Camp two weeks back .
Ilkay Guendogan scored twice and Kevin De Bruyne netted a heavenly free kick in a wonderful show from the home side that finished Barcelona 's 100 percent record and made good looking revises for City 's 4 - 0 drubbing at the Nou Camp two weeks back .