Mattias Ekholm had a plus-minus of -1 in 2 games in his rookie season in 2011-12.

mattias ekholm rookie season stats
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NAMESEASONTMGPGAP+/-PIMPPGPPASHGSHAGWGOTGSS%TOI/GP
Mattias EkholmMattias Ekholm2011-12NSHNSH2000-1000000010.012:25