Loe was reportedly at the Mariners' facilities today, but nothing has been announced to this point.
Loe, 31, pitched last season for the Brewers. He threw 68⅓ innings for them, pitching his way to an ERA of 4.61. The right-hander had a much better go of things during his first two seasons in Milwaukee -- as did the rest of the Brewers' bullpen -- posting a 3.18 ERA and 2.1 BB/9 rate in 130⅓ innings of relief.
He is mostly a middle reliever, but accumulated two saves last season so he can be used as a closer if an emergency arises.
It is likely he is only in M's camp to provide competition, but with a solid three seasons for the Brewers under his belt he may be one of the better candidates for their bullpen.
Loe was at one time considered a very good prospect, surfacing originally in 2004 with the Rangers at age 22. He pitched his way to a 3.42 ERA in 2005, but was never able to repeat his age-23 performance.