Jeffress and Knebel were not used more than most other RPs in the 2nd half last season. Do a simple sort of IP and G in the 2nd half by RP and they are right in the middle of a huge clump of players with similar usage. Hader's usage is also very similar to other longer RP guys in that list. They pitched deeper into the playoffs which can certainly be a concern. We don't know what is up with Jeffress yet and Knebel has been pitching with this injury for a while now which is why they didn't think much of it at first (no they weren't lying to you). They still don't know if something got worse or what the extent of the injury is, probably because they need the swelling to go down completely before they can get a good look at it. This is the same junk most teams are going through and go through every season to start the year. It just happens that it is two important RP for us. The Angels have it worse than us, the Dodgers probably do too, the A's have it worse if its Olson's hamate, the Braves have 3 guys they expected to be in their rotation hurt already, the Yankees have 2 of their starters down, their CF on the mend, their 1B with a bad elbow and their 2nd best RP injured. This is spring it is just how things work.