Mtshali joins the National First Division side on a six months loan deal.
He becomes the second player from Pirates to join Cosmos on loan after striker Ayanda Nkosi joined at the start of the season.
“Deal done, Jomo Cosmos have signed Orlando Pirates midfielder, Letnoholo Mtshali on a 6-month loan deal,” read a tweet from Cosmos.
Cosmos, who are currently 12th on the NFD log, will be hoping that the young midfielder help them moved out of the bottom half of the table.
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