Lyon will protect the road goal versus the Bruins in Game 3 on Thursday, Scott McLaughlin of WEEI reports.
Lyon made seven saves in relief of Ukko-Pekka Luukkonen during Game 2. The 33-year-old Lyon will make his first start this postseason, and a strong performance could help him take a larger share of playing time. He went 20-10-4 with a 2.77 GAA and a .906 save percentage over 36 regular-season appearances.