D'Orio, 18, backstopped the Penguins to the best record during the 2017 Prospects Challenge in Buffalo, going 2-0-1 and stopping 74 of the 82 shots he faced in three appearances. He also participated in the Penguins' prospect development camp in July.
A 6-foot-2, 209-pound native of Sherbrooke, Quebec, D'Orio enjoyed a stellar rookie season with the Saint John Sea Dogs of the Quebec Major Junior Hockey League in 2016-17, helping his club win their league championship and a berth in the Memorial Cup tournament.
D'Orio, who like former Penguins goalie Tom Barrasso catches with his right hand, saw action in 28 regular-season games for the Sea Dogs, posting a 19-2-2 record to accompany his team-low 2.40 goals-against average and .903 save percentage. Heading into the 2017 NHL Draft, D'Orio was ranked as one of the top-15 North American goaltenders by NHL Central Scouting.
This season, D'Orio is expected to take on a much bigger workload for the Sea Dogs. In preseason action, he stopped 28 of the 30 shots he saw in 90 minutes of action over a pair of appearances. His lone start was a 13-save shutout against Acadie-Bathurst.
Saint John chose D'Orio in the first round (9th overall) of the 2015 QMJHL Draft.