Hartnell announced his retirement via social media Monday.

Hartnell extended his goal-scoring streak to three games Sunday against the Blues.

Hartnell recorded two assists and a major penalty for fighting during Thursday's 4-3 overtime loss to Ottawa.

Hartnell has just four points in his last 17 games, and has averaged just 10:26 in ice time over that span.

Hartnell (lower body) skated with his teammates Tuesday, Adam Vingan of The Tennessean reports.

Hartnell will be sidelined 3-to-5 weeks due to a lower-body injury.

Hartnell is "out right now" with a lower-body injury according to head coach Pete Laviolette.

Hartnell left Saturday's shootout win over the Penguins in the first period due to an undisclosed injury and did not return, Brooks Bratten of the Predators' official site reports.

Hartnell recorded an assist in Saturday's 4-3 OT win over the Kings. He saw ice time of 17:22 skating on the first line with Ryan Johansen and Viktor Arvidsson.

Hartnell (undisclosed) took part in Tuesday's optional skate after sitting out for a maintenance day Monday, Brooks Bratten of the Predators' official site reports.