Karlsson (ankle) will be back in the lineup against Arizona on Tuesday, Kevin Kurz of CSN Bay Area reports.
Karlsson slots back into the Sharks' fourth line after a seven-game absence. In 15 appearances this year, the center has tallied two goals and a pair of assists while averaging 11:53 of ice time. He's not much of a fantasy asset while confined to a bottom-six role with no power-play time.