PITTSBURGH -- Shed Long has produced well since he was moved to the leadoff spot last week. Now, Mariners manager Scott Servais will begin to determine where Long can be deployed in the field going forward.

The 24-year-old, whom the Mariners acquired on Jan. 21 from the Yankees, has hit 10-for-28 with a double and two homers in six games batting leadoff -- including a blast in Tuesday’s 6-0 win over the Pirates -- upping his OPS by more than 60 points to .783 in that span.

“What we saw from Shed in Spring Training, if you go back to that point, is he’s got pop in his bat,” Servais said. “He can drive the ball. We’ve seen him take the ball out to the opposite field at our place, which is not easy to do at T-Mobile [Park]. So he’s a threat at the top of the lineup who can hit a double or a home run.”

If Long can keep it up, the next question will be how Seattle can keep him in the lineup every day. Long is by no means a defensive liability. He was given 45 fielding and 50 arm grades as part of his No. 9 ranking among all second-base prospects heading into 2019, per MLB Pipeline.

The search for other spots is a process which has been occurring throughout September. After making 17 straight starts at second to begin his rookie season, Long has made seven starts in left field and one at third in his following 14 games, including his start in left on Tuesday against the Pirates.

“It may be for a while he kind of moves around a little bit,” Servais said. “I do like the versatility of what you’re able to do, lineup-wise, being able to move around, but I think the biggest thing is -- I think we have a pretty good idea of how he’s wired in the batter's box, but to see how he handles more things defensively, whether that’s at second base, left field, third base, wherever we put him.”

Worth noting

• Outfielder Domingo Santana (right elbow inflammation) was activated from the injured list ahead of Tuesday’s series opener at PNC Park, and he rolled into a double play in the eighth inning in his first at-bat back. Servais said that he expects Santana to get more at-bats this series.

“He looks good,” Servais said. “He was out early, taking BP today off the velocity machine. Looks completely healthy swinging the bat, so we’ll get a chance to get him out there. I’m sure you’ll see him pinch-hit at some point this series.”

• Shortstop J.P. Crawford was back in the lineup Tuesday after not starting on Sunday against the White Sox. Crawford went hitless in his first two games since returning from left hamstring tightness, but he drew two walks. Crawford drew two more walks and singled on Tuesday. Servais said that he imagines Crawford will get some more rest in the final two weeks.

“He obviously doesn’t need to push it, but day off Sunday, day off Monday we’ll get him back out there tonight and we’ll give him a day or two off as we go down the stretch here,” Servais said. “But he’s done a lot of good things this year. Hopefully, he’ll finish it up strong.”