According to The Wrestling Observer, WWE star Jack Swagger is currently sidelined with a hand injury, and while he will be able to return at the end of this month, he will not full be cleared to compete at 100% until August.
This is likely the reason why Zeb Colter Tweeted recently that "changes" are expected on Raw next week, as WWE is going to have to be careful with how they book Swagger until he has fully recovered from his hand injury.