The Daily Telegraph's Paul Hayward:
"SAF keeps faith with his young players but 8 months after they reached a Champions Lge final #MUFC will be under intense pressure to respond"
Sunday Mirror's Brian McNally:
"Man City left themselves too much to do after a poor start to the CL group. The disunity in Munich didn't help but #mcfc will be back."
Manchester United legend Roy Keane: "This is a reality check for these so-called brilliant English teams and people who think this is the best league in the world."
"I'd get hold of some of the young lads and say 'Buck up your ideas, you're playing for Man United.'
"Chelsea and Arsenal will be a handful, but I wouldn't look beyond the Spanish teams. They are sending messages to everyone."