I want Berna gone just as much (ok, maybe not just as much, but still) as you do. And whilst I like Sami, i said it was a mistake to renew with him and that I would have let his contract run out.
All that doesn't take away from the lolzilian being a part time footballer on a high salary who scores a nice goal/dribbles past 5 Spal players once in a while - but then tears a muscle in his arse and is out for a month.
It's history repeating again and again and yet folks still won't accept you simply can't rely on him at all.
Sell him while you can and get a younger replacment with similar skillset that's not made of waste glass.