Tkachuk suffered an injury in the third game of the season, underwent thumb surgery, and has been sidelined since. The Senators' Captain will return to the lineup on Friday against the St. Louis Blues, giving a boost to his team that has fared reasonably well without him, going 12-7-4 through 23 games. The 26-year-old Tkachuk scored points (0G / 3A) through three games this season prior to his injury.










