"I'm here to tell you, I was more impressed by that than anything last night," manager Eric Wedge said before Thursday's series finale. "There were a couple shots his way that he handled very well.
"We've seen him come in on those bunts and slow rollers a couple times and he's handled that body control very well with something on it, keeping it inside the bag. It's not easy to do.
"You guys got spoiled over here for a couple years watching [Adrian] Beltre do it," said Wedge. "He's as good if not the best ever at that. But Seag has done a nice job. He's settling in, he's giving us some quality at-bats, he's had some big hits for us and he's really caught up to the speed of the game over there at third base defensively."
Combine that with his increasing comfort at the plate and the former North Carolina standout is certainly making his case as the third baseman of the future for a club that has been searching for answers at that position.
Heading into Thursday's series finale against the Angels, Seager was 20-for-46 with nine runs, seven doubles and two home runs and five RBIs over his previous 12 games.
The only thing missing might be home run pop at a traditional power position, but Wedge didn't sound worried about that Thursday.
"A lot of people talk about profiling [power positions]," Wedge said. "I'll give you my definition. I don't care ... as long as we have them out there in our nine. It doesn't have to be by position. I don't care where it comes from, as long as we have it.
"If we don't have power in one position, then we need it somewhere else. And power, most people think of that as home runs. I define power as extra-base hits and the ability to drive in runs. Hey, I love home runs as much as the next guy. But we're talking about scoring runs."
As for Seager's outlook, he just wants to be in the lineup. He played third base his junior year at North Carolina before moving mostly to second base after being drafted by the Mariners in '09.
"It doesn't really matter to me necessarily where I play, I'm just going to try to do my best anyway," said the 23-year-old. "Wherever they want to put me is perfectly fine with me. I've played all different positions coming through the Minors, so I feel pretty comfortable everywhere."