I just checked my last season, 2013.
Only one career-ending injury, to
Ken Sparrow
Here's his CatoBase entry, which I ran
after the 2013 season:
Ken Sparrow
His CatoBase is missing the stats for 2013 entirely, but his player history correctly lists his contract and injury from 2013. His stats and salary are also missing from his team's page for 2013, but he's listed in the team CatoBase transaction log as having signed on 2/3.