The Scuffed podcast has been saying for a month or so they wouldn't be surprised for Steffen to be "out with a slight back injury" if he wasn't going to be rostered as the clear cut starter. In other words, if Berhalter told him Turner was the projected starter, Steffen may have opted out. I don't agree with that choice, but backup GKers rarely play, and Steffen may think it's better for his career to take a break and continue on trying to establish himself with his club. I had been assuming for the last several years he was our No. 1 guy for the foreseeable future, but I think he's just a depth guy at this point. Turner is better (currently), and you have a potential star coming up (Gaga).
This reminds me of 94. Keller was one of our best GKs, but young, and didn't see eye to eye w Bora. He wasn't on the WC roster, but obviously still became a mainstay afterwards.