Saliba also wanted to stay at OM.You're literally just making things up in your head. Arsenal are not selling and are in discussions to sign him to an extension and Saliba himself said he's staying.
And the same Tavares that everyone here says is a dumb player? Does him going to OM all of a sudden make him great?
If OM (who's playing the CL remember) makes a good offer, there's a chance Arsenal sells. Saliba clearly hates Arteta and the feeling seems mutual. I believe Saliba would gladly play for OM/play the CL/play for the NT/the WC than ride the bench at Arsenal because Arteta prefers under average CBs and thus missing out on the WC.
I mean, when you prefer starting Holding over Saliba, the writing is on the wall. It's just spitting to his face.