Staal had not scored since March 15, 2022, against the Edmonton Oilers while with the Detroit Red Wings.
"It felt good," Staal said. "I'm not that stressed about it, I don't really think about it, but the boys were pretty pumped up for me, so it was nice to get. Nice to get one and get the momentum going for us."
Erik Gustafsson had three assists, and Darcy Kuemper made 30 saves for the Capitals (28-23-6), who lost their third straight game in regulation for the first time this season. They will play the Carolina Hurricanes outdoors in the 2023 Navy Federal Credit Union NHL Stadium Series at Carter-Finley Stadium in Raleigh, North Carolina, on Saturday (8 p.m. ET; ABC, ESPN+, SN360, TVAS2).
"I think we know what it takes to be successful. I think we just haven't played that way in a couple games here," Washington forward Dylan Strome said. "So, [we've got to] get back to that and come together as a team and really figure out a way to get these points."