Ottawa's head coach, D.J. Smith, provided an update on the captain's health after he left the game following a high stick near the eye.
Marc Staal was never the same after his major eye injury in 2013. Henry Boucha, one of the greatest Minnesota high school athletes, had only a short NHL career because of an eye injury. Ryan Suzuki dropped from a projected top five pick to the late first round after an eye injury.
Tkachuk will miss a few pre-season games, but should be back in time for the start of the regular season, which is good news for the Sens.