The pressure will obviously be kranked up on this now. I think if we were 'open' to selling him then £70M could easily be a tipping point.
As for the Wengers talk about selling players, it's not as much to raise transfer funds like others have said, it's to get rid of 'deadwood' to try and free up room in the squad. We have 31 senior players, so we need to get rid of the likes of Debuchy, Chambers, Gibbs, Lucas etc who won't contribute anything this season.
As for yesterday, didn't watch the game as I was travelling to Krakow, but the main frustration from me, which stems from last week, and all other recent season openings, is that we are under prepared & never settled in defence for the first few weeks of the season. We look poor without Koscielny, and are playing people out of position. That early ground we lose each year can make a big difference.