Goaltenders Alex D'Orio and Maxime Lagace's statuses have been changed from emergency recall to regular recall.
In lieu of a taxi squad, Stanley Cup Playoff-bound teams are permitted to carry an expanded roster.
The 27-year-old Riikola and 32-year-old Weber have each appeared in two games for Pittsburgh in 2020-21. Riikola is looking to make his playoff debut while Weber has 42 games of postseason experience split between Montreal, Vancouver and Nashville, where he recorded six points (4G-2A).
Larmi, 24, has split the season between the taxi squad and WBS, where he's started in six games. Prior to his time in North America, the 6-foot, 185-pound goaltender spent three seasons with HPK of Finland's top professional league (Liiga) winning the Liiga championship in 2019.
The Penguins will face off in Round One of the Stanley Cup Playoffs against either the Boston Bruins or New York Islanders. Both the Bruins and Islanders have games remaining which can affect seeding. A full schedule will be announced by the NHL at a later date.
