Starting pitcher Brandon Maurer #37 of the Seattle Mariners pitches in the first inning against the Tampa Bay Rays at Safeco Field on May 14, 2014 in Seattle, Washington. (Photo by Otto Greule Jr/Getty Images)

by Curtis Crabtree
KJR reporter
Twitter: @Curtis_Crabtree

SAFECO FIELD - The Seattle Mariners made a pair of roster moves on Wednesday ahead of their series finale with the Boston Red Sox.

However, it may be the move that hasn't been made yet that is more interesting.

The Mariners optioned starter Erasmo Ramirez and recalled Brandon Maurer from Triple-A Tacoma. Maurer will be joining the team in the bullpen this time instead of the starting role he was in when last with the club earlier this year.

It also appears to be a precursor for the activation of starter Taijuan Walker from the disabled list early next week. Walker threw a complete game shutout against Oklahoma City last night in Tacoma, allowing four hits and a walk with eight strikeouts.

Manager Lloyd McClendon wouldn't confirm that move was coming, but did hint at its possibility.

“That move is pending,” McClendon said. “I don’t have it right now.”

"I’d say (Walker) is in the discussion, yeah,” McClendon added. "I don’t think there’s anything wrong in (saying) that. Yeah."

Walker is on schedule to replace Ramirez in the Mariners rotation and would likely start next Monday against the Houston Astros. The Maurer call-up gives the team an extra bullpen arm for the next four days before needing to make a roster move to bring Walker back to the roster.

Maurer has been working out of the bullpen since being sent to Tacoma in June. He's thrown 17 1/3 innings with a 2.60 ERA in 11 games as a reliever this season for the Rainiers.

“It gives him less chance to think about things,” McClendon said. “His velocity is up at the Triple A level. He’s up to 98. So that’s intriguing.”