He didn't actually say that SB, what he said was in a week or so he comes out of the brace, then he needs a further 2 weeks to get the movement back. However there has only been 7 cases of this injury reported before, so it is unusual. After that they will know, but it is not out of the question that he could be out for the season.
What is the injury? Thought it was tendinitis? Surely there's been more than 7 cases of that reported before.
That's because it was presumably filmed near the beginning of the season, as Lenihan who took one of the kicks was loaned out in November and came back injured (and still is as far as I'm aware).