When last seen at Comerica Park, Austin Jackson didn’t know what to think or feel as he jogged toward the Tigers’ clubhouse when replaced in the seventh inning of a July 31 loss to the Chicago White Sox.

It didn’t register, he admits, when the crowd saluted his departure as word circulated that Jackson had been traded to Seattle in a three-team deal that netted ace lefty David Price from Tampa Bay.

Fast forward: Ask Jackson what he expects tonight, when he returns to Comerica with his new club — an opponent now battling the Tigers for a slot in the postseason lineup — and he pauses to reflect.

“I don’t know,” he said. “I guess it depends on how we do against them.”

Jackson, a centerfielder, expects the hardest part this weekend to be the time around the games. It was while playing for the Tigers that he blossomed from a raw rookie talent to a reliable cog.

Jackson said he has tried hard this week not to look ahead.

“I’m focused on trying to help the (Mariners) win,” he said. “When that time comes, I’ll worry about it then. There will be some mixed emotions, I guess. I had a chance to play with a majority of those guys for some years.”

Some memories are indelible.

“Obviously, getting the chance to play in the World Series,” Jackson said. “And just getting the chance to watch some really talented players.

“You learn things from them — their mind-set; how they go about their business on a day-to-day basis. It’s a very professional ballclub.”

It is those same qualities the Mariners saw, and valued, in Jackson when they agreed to surrender Nick Franklin, a promising switch-hitting infielder, to Tampa Bay.