The Rangers have placed veteran right-hander Derek Lowe on unconditional release waivers and signed utility man Mark Teahen to a minor league deal, according to an ESPN.com report on Thursday.

After being designated for assignment by the Rangers earlier this week, Derek Lowe has cleared waivers.

Lowe must now decide whether to accept a Triple-A assignment or become a free agent

The Seattle Mariners have released David Aardsma.

Ken Rosenthal of FOX Sports reports that Aardsma's contract contained a May 15 opt-out clause that allowed him to request his release if he wasn't with the Major League team.