That's their 3rd player who has recently had to retire due to a neck injury. It sucks. In Carson's case, it wasn't unexpected (hence the RB drafted in the 2nd round). He was a good tough runner. Fun to watch.
Here’s the thing. The Mariners aren’t good enough to hang with the best teams in the league. And that’s fine. They are still super young and working on getting there. If they can just get a wild card spot, anything can happen.