Lehkonen scored two goals, one of them the game-winner, in Saturday's 5-2 victory over the Predators.
Lehkonen scored a goal on two shots and went plus-5 in Tuesday's 6-2 win over the Penguins.
Lehkonen scored a goal on two shots in Thursday's 5-3 loss to the Hurricanes.
Lehkonen scored the game-winning goal and fired three shots on net in Tuesday's 5-4 win over the Sabres.
Lehkonen (shoulder) was activated from Injured Reserve on Saturday.
Lehkonen (shoulder) will meet with the team doctor Oct. 28 to be evaluated, according to Evan Rawal of the Denver Gazette on Wednesday.
Lehkonen (shoulder) was put on the injured non-roster list Monday.
Lehkonen (shoulder) will be re-evaluated at the end of October, Corey Masisak of The Denver Post reports Monday.
Lehkonen (shoulder) was skating in a non-contact jersey during Wednesday's practice session, Evan Rawal of the Denver Gazette reports.
Lehkonen (shoulder) is not expected to be a full participant during training camp or preseason games, Evan Rawal of Colorado Hockey Now reports.