Earlier in the game, McDavid curled away from Hampus Lindholm at the Oilers blue line, allowing the Ducks defenseman a clean shot on net, which led to Silfverberg's goal at 5:33 of the first period to give Anaheim a 2-0 lead.
McDavid, the Art Ross Trophy winner as the NHL's leading scorer with 100 points (30 goals, 70 assists) had a League-best 30 multi-point games in the regular season but has yet to have one in the playoffs.
Oilers forward Pat Maroon said he is not worried about McDavid changing his game because of the Ducks' tight checking.
"In my eyes he's been playing good, he hasn't been frustrated at all," Maroon said. "He scored a goal and everyone is excited for him that he scored a goal. For him, he's one of those guys that is a pass-first kind of guy. You don't want him to be, you want him to shoot a lot more.
"But he's a guy that plays hard every night, he's been our best player every night, he's been carrying our team every night, he's been our offense, so I think [Sunday] night, he scored a goal, an unbelievable goal, but I think he played really good too. I think he's been playing good the last few games."