Hartman was acquired from the Predators in the Wayne Simmonds deal on Monday and is expected to slide in for Simmonds on the third line on Tuesday.

Hartman was acquired from the Predators in the Wayne Simmonds deal on Monday and is expected to slide in for Simmonds on the third line on Tuesday.
Mayfield has been playing nearly 20 minutes per night this season but will take a seat with Thomas Hickey returning from an upper-body injury on Tuesday.
Kuhnhackl has been playing a big role as of late but will sit with Andrew Ladd returning to the lineup on Tuesday. Kuhnhackl recorded just one assist in his last seven games.
Hickey will return from an upper-body injury and play for the first time since December 17th, replacing Scott Mayfield on the blueline. Hickey has four assists in 32 games this season.
Ladd will return from a lower-body injury and play for the first time since November 13th, replacing Tom Kuhnhackl on the Islanders third line. Ladd has three goals and four assists (seven points) in 14 games this season.
Vanek is dealing with a hip flexor injury and likely won't be available for Tuesday's game, which means that Luke Witkowski will likely draw into the lineup vs. the Habs. Consider Vanek day-to-day.
Trotman is expected to be plugged right into the Penguins lineup on Tuesday with both Kris Letang and Brian Dumoulin out, and Erik Gudbranson unavailable due to visa issues. The 28-year-old defenseman has five points (1G / 4A) in 24 AHL games this season.
Both Benn and Mats Zuccarello were hurt in the Stars game in Chicago on Sunday and Benn is unlikely to play on Tuesday. Monitor his status during the Stars morning skate, but it looks like Dallas will be without 2/3 of their top-line in an important game in Vegas.
Delia played well during his time with the Blackhawks, going 6-4-3 with a 3.48 GAA and .909 SV% but returns to the AHL with Corey Crawford being activated from IR. Delia has gone 7-5-4 with a 2.34 GAA and .933 SV% with Rockford this season.
Crawford has been skating and practicing for a while now but has finally been activated from IR and looks to be in-line to play his first game since December 16th on Wednesday. Crawford has had a tough season, going 6-14-2 with a 3.28 GAA and .902 SV%, but the Blackhawks are now in the middle of a playoff race, so Crawford could be leaned on heavily down the stretch.
Letang was hurt early in the Penguins outdoor game against the Flyers and it looks like they will go into Tuesday’s game missing both of their top-pairing defensemen. Letang is considered day-to-day, so monitor his status heading into Friday’s game in Buffalo.