Merkley was playing his second NHL game. He made his NHL debut Saturday and was one of the players recalled from San Jose of the American Hockey League after the Sharks placed seven players in COVID-19 protocol.
"He's played excellent," Couture said. "He practices hard. He's learning to be a pro."
Hertl made it 3-1 at 6:13 of the second period with a backhand, but Drake Caggiula brought Buffalo within 3-2 at 13:33 with a slap shot that deflected in off the post.
"If we're going to be a good team we're going to have to learn how to win on the road," Skinner said. "We're going to have to learn to weather storms in tough buildings. Unfortunately, today we weren't able to do that."
NOTES:Sharks forward Nick Merkley (no relation to Ryan) had an assist for his first NHL point. … San Jose forward Rudolfs Balcers had two assists. … Ferraro had five of San Jose's 11 blocked shots. … Sharks forward Andrew Cogliano played 15:43 after missing one game in COVID-19 protocol. … Sabres forward Cody Eakin returned after missing five games with an upper-body injury. He had one shot, one hit and was minus-1 in 13:40.