Look for the Mariners to add two or three players prior to Friday’s series opener against the Los Angeles Angels at Safeco Field. Clubs can expand their rosters from 25 players to as many as 40 on Sept. 1.
The Mariners are expected to add a third catcher, probably by recalling Jesus Sucre from Triple-A Tacoma. They are also expected to activate right-handed reliever Evan Scribner from the 60-day disabled list.
Scribner, 31, has made four rehab appearances after suffering a torn back muscle in spring training. The Mariners acquired him from Oakland in a Dec. 8, 2015 trade for minorleague pitcher Trey Cochran-Gill.
The Mariners cleared a spot for Scribner on their 40-man roster Tuesday by assigning right-hander Jarrett Grube to Tacoma after he cleared waiver. It was a paper move for Grube, who was already pitching for the Rainiers.
The Mariners figure to further bolster their bullpen when Drew Storen (shoulder inflammation) and Tom Wilhelmsen (back spasms) return from the disabled list. Storen can return as soon as Sept. 4; Wilhelmsen on Sept. 9.
Another reliever, Tony Zych, is eligible to be recalled Sept. 4 from Tacoma. Outfielder Nori Aoki and infielder Mike Freeman can be recalled on Sept. 5.
Scribner compiled a 4.54 ERA last season in a career-high 54 games at Oakland. He is 5-2 with a 4.21 ERA in 121 career games over parts of five seasons.
Sucre, 28, missed nearly three months while recovering from a broken leg suffered Jan. 17 while playing winter ball in Venezuela. He played three big-league games in July, going 1-for-10, but has spent much of the season at Tacoma.