Torrealba was recently designated for assignment by the Rangers. The team has had difficulty finding a trade partner for him, and have placed him on unconditional release waivers.
If he goes unclaimed, Torrealba will become a free agent on Friday.
Since the Rockies lost catcher Wil Nieves on a waiver claim, they could be in the market for a new catcher.
The 33-year-old Torrealba is hitting .236/.302/.342 this season.
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