An already ailing San Jose Sharks defense corps is now dealing with another malady as Shakir Mukhamadullin will miss Friday’s road game against the Utah Mammoth and likely Saturday’s home game against the Pittsburgh Penguins with an upper-body injury.

Sharks coach Ryan Warsofsky told reporters Friday that Mukhamadaullin sustained the injury in a recent practice and is now considered day-to-day. Mukhamadullin, who has not played since the Sharks’ season-opener on Oct. 9, participated in Thursday’s practice in San Jose.

After Saturday, the Sharks open a four-game road trip on Tuesday against the New York Islanders.

Mukhamadullin’s injury, and those to John Klingberg (lower body) and Timothy Liljegren (upper body), will thrust Vincent Iirio into the Sharks’ lineup on Friday, on

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