I haven't watched him bowl in the IPL, but considering that he's bowled all summer without incident, I don't think it's quite accurate to say that he's clearly struggling. It is a concern though, especially given his previous shoulder injury, so you could be right in saying that the World Cup might be a farewell, assuming he even makes it there.
I'm inclined to be a bit on the optimistic side as well. According to what SeamUp posted, Kohli described the injury as a niggle, and Steyn's only been prescribed rest. So that does point to something not too serious, but you never know, especially given that Steyn's reached the point in his career where injuries can become more frequent and coming back from them is no longer as certain.
It'd be Dala or Morris. Probably Morris.
Not good.... I am really starting to think he does not want to be playing but is being asked to stay on?
Amla is intelligent and shows humility. He will know things aren't feeling right. Convinced he has been asked to stay on.
In which case the selectors are at fault. It's quite clear Amla is struggling for runs, a situation not helped by his father's poor health, so he's not in a good place right now. I know not taking him to the World Cup is a big call given his experience and career record (and would have been unthinkable not so long ago), but I don't think it's realistic to expect him to suddenly come right at the tournament.
I think it's difficult to tell from that article. Zondi could have simply been answering the question "What if Steyn's not fit?", in which case he was just confirming what the back up plan would be, and it doesn't necessarily mean that they will need to make use of that back up plan.
Disappointing dismissal though. Chipped tamely to long-on off the spinner.
