Martin Jones, through 15 games this season, sits very close to the bottom of the NHL leaderboard in 5v5 save percentage. His .906 mark is better than only three goalies with at least 500 minutes played: Steve Mason, Semyon Varlamov and Brian Elliott.
For the sake of comparison, through his first 15 games last year Jones held a .930 5v5 save percentage. Those numbers, I understand, aren’t comparable for a whole slew of reasons including different opponents and the randomness that occurs in a sample size as small as 15 games.
Jones went through an extended slump around December last season and it’s certainly possible that’s the explanation for this skid as well.