Interest in Borbon didn't materialize enough to get a return in a trade, the source said. The Rangers had been hopeful Tuesday that there was enough interest in Borbon to complete a deal.
The Rangers designated the 27-year-old outfielder for assignment last Tuesday when they called up pitcher Nick Tepesch.
They had 10 days to trade him or put him on waivers. Borbon has to clear waivers before the Rangers can send him to Round Rock, but that is not expected to happen.