The Leafs practice lines, according to TSN's Mark Masters, has O'Reilly on the third line, along with Alex Kerfoot & Noel Acciari.
Calle Jarnkrok stays with Auston Matthews on the first line, but could easily swap with O'Reilly in the top six. Sheldon Keefe has in the past moved lines around before the playoffs to get a sense of how different players play with one another.
Luke Schenn inserts back into the third line, with Timothy Liljegren out of practice, partnering with Morgan Rielly, who falls to the third line. Jake McCabe moves to the first line with T.J. Brodie.