Johnson slashed and shoved Namestnikov into the end boards late in the second period Saturday, just after Namestnikov was turned away by Jonathan Bernier on an odd-man rush.
Johnson received a slashing minor, a five-minute major for boarding, and a game misconduct on the play.
Namestnikov was able to stay in the game, finishing with the third-most ice-time among Lightning forwards, logging 18:05.
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