He didn’t even stand out at Bournemouth last season so not sure how you come to the conclusion that he’s arguably our best player?
In the 6 seasons from 2010-2016, he managed 80 Premier League starts which equates to an average of 13.3 starts a season. A player who is likely to contribute less than 15 league starts in an entire campaign is not worth keeping let alone for 100k a week.
We’ve stuck by him for long enough and given enough opportunities to prove his fitness. Time to cut the chord. If he goes on and becomes a star at another club then so be it, the statistical likelihood of that is extremely low so we shouldn’t hang on to him based on that forlorn hope.