The £8.5million signing is definitely out of the games with Villa and Barcelona and may have to have surgery to rectify the problem.
"Hugo Viana sadly, distressingly, depressingly has semi-dislocated his shoulder," said Sir Bobby, as only he can.
"He's had a scan, he's seen the specialist and I'm afraid it will be a few weeks.
"I'm just absolutely sad about it. The surgeon thinks we should just rehabilitate it in normal fashion and it's going to take several weeks - two, three, four or five, something like that - and we hope it won't pop out again.
"It's sort of semi-popped out, and once they do that, any knock after that, any fall....I remember the Bryan Robson scenario at the World Cup in Mexico. We sent him home in the end.
"So it's sad, and maybe at the end of the season, we'll have to pin it. We need to try to just soldier on with it, see if doesn't pop out and get away with it.
"If it does pop out again, the maybe at some stage this season, we'll have to pin it during the season, and he will be out for several weeks then.
"It's a blow to us. But never mind, there's not much I can do about it."
If Hugo can develop into as good a player as Bryan Robson I think we’d all be pretty pleased!