Pens are working on the power play. They are using the following units:
1) Letang, Crosby, Malkin, Guentzel, Rust
2) Marino, Zucker, McCann, Rodrigues, O'Connor

— Pens Inside Scoop (@PensInsideScoop) January 21, 2021

Here is the Pens' workflow...

Guentzel-Crosby-Kapanen
Zucker-Malkin-Rust
McCann-Jankowski-Tanev
O’Connor, Rodrigues and Sceviour rotated with Blueger.

Dumoulin-Letang
Marino-Ceci
Joseph-Czuczman

— Pens Inside Scoop (@PensInsideScoop) January 21, 2021

Matheson is out, Riikola is in for the Penguins.

Guentzel-Crosby-Rodrigues
Zucker-Malkin-Rust
McCann-Jankowski-Tanev
Lafferty-Blueger-Sceviour

Dumoulin-Letang
Pettersson-Marino
Riikola-Ruhwedel

— Taylor Haase (@TaylorHaasePGH) January 17, 2021

O'Connor is rotating with McCann, who has a hearing today for elbowing Travis Sanheim. Here's the workflow:

Guentzel-Crosby-Rodrigues
Zucker-Malkin-Rust
O’Connor/McCann-Jankowski-Tanev
Lafferty-Blueger-Sceviour

Dumoulin-Letang
Pettersson-Marino
Matheson-Ruhwedel
Riikola-Ceci

— Pens Inside Scoop (@PensInsideScoop) January 16, 2021

#Pens lines at today's morning skate:
Guentzel-Crosby-Rodrigues
Zucker-Malkin-Rust
McCann-Jankowski-Tanev
Lafferty-Blueger-Sceviour

Dumoulin-Letang
Pettersson-Marino
Matheson-Ruhwedel
Riikola-Ceci

— Matt Vensel (@mattvensel) January 15, 2021

Same power play personnel today.

PP1: Crosby, Malkin, Letang, Guentzel, Rust
PP2: Marino, Pettersson, Zucker, McCann, Rodrigues

— Mike DeFabo (@MikeDeFabo) January 12, 2021

Pens' workflow at their Monday practice (these are the same combos they used in Sunday's scrimmage):

Guentzel-Crosby-Rodrigues
Zucker-Malkin-Rust
McCann-Jankowski-Tanev
Lafferty-Blueger-Sceviour

Dumoulin-Letang
Matheson-Marino
Pettersson-Ceci
Riikola-Ruhwedel

— Pens Inside Scoop (@PensInsideScoop) January 11, 2021

#Pens are working on the power play now to wind down practice.

PP1: Letang, Malkin, Rust, Crosby, Guentzel

PP2: Pettersson, Marino, McCann, Zucker, Rodrigues

Blueger, Tanev, Lafferty, Jankowski & Sceviour mainly the players working up front on the PK.

— Josh Getzoff (@PensJG) January 11, 2021