Copy/paste from Facebook.. for those who don't go there..
We are sorry to announce that we have been forced to postpone our shows in Manchester tonight and Birmingham tomorrow. Michael Dean has developed serious blood clots in his left leg and has been advised under no circumstances to play. We are deeply sorry for the inconvenience, especially for people who have traveled a long way.
Thanks to our promoter we have already been able to schedule the shows to early January - Birmingham Fri 10 Jan and Manchester Sat 11 Jan. Tickets will remain valid for the rescheduled dates. Anyone unable to attend the rescheduled dates should contact their original point of purchase to request a refund.
New Model Army 
Did notice that Michael was wearing support socks in Bristol last week. Get well soon fella.
