Another impressive preseason, with nine points (six goals, three assists) in six games, has given the Oilers an even more optimistic outlook for Yamamoto.
"I see a maturity level that's greater than what it was last year at this time, and physically he's changed," coach Todd McLellan said. "He's put a little meat on his bones and has gotten a little stronger. Mentally he's a little more comfortable in and around the team."
Yamamoto has played on a line with center Leon Draisaitl and Lucic to begin the season and they have been generating quality scoring chances. Yamamoto has shown a lot more confidence and zest in creating offense.
"They're two tremendous players and it's a lot of fun to play with them," Yamamoto said. "They open up a lot of space and maybe we can get some more chemistry going and it'll be good."
Draisaitl, who was second on the Oilers with 70 points (25 goals, 45 assists) in 78 games last season, quickly has adjusted to Yamamoto.
"He had a very successful preseason, and he's obviously a smaller guy but he doesn't play to that size," Draisaitl said. "I think he plays a lot bigger than he is. Usually the challenge is the strength going against big guys but I don't think that's the case with him. He's pretty feisty and strong for how small he is. I think he makes up for that height with his feistiness and that style of play."
The Oilers last season controlled 60.69 percent of all shots attempted at even strength with Yamamoto on the ice, and his average shot length was the least of any Oilers player at 18.9 feet.
"He's 20 years old and you're able to put him out there on the penalty kill too, so that just shows that he understands the game from a defensive aspect," Lucic said. "When he has that already his game will only escalate because at this level it's hard to teach defense and he kind of has that instilled in him already. I think it'll be a good start for him in his first full pro season and I'm excited to see what he can bring to this hockey club."