The Seattle Mariners haven't confirmed anything, but Taijian Walker will be the club's fifth starter and make the Opening Day roster.

The Mariners traded Erasmo Ramirez to the Tampa Bay Rays for Mike Montgomery on Tuesday night, appearing to set the team's roster.

"Look at the board," Lloyd McClendon said, nodding toward an office wall showing Walker and rookie Tyler Olson as the last name in the bullpen.

"Write what you see," the manager said. "I like my team."

With one start remaining on Saturday, Walker has gone 3-0 with a 0.36 ERA in six Cactus League games.