Utrecht on Monday confirmed the signing of 18-year-old Matthews on a loan deal for the remainder of the season from the Bundesliga giants.
The former Ajax Cape Town midfielder joined Dortmund just two months ago but has already secured a move elsewhere after not getting much game-time.
Matthews, who graduated through the Ajax youth system, was made to wait for his work permit and made just two UEFA Youth League appearances for the Under-19 side as well as a first team substitute outing during a friendly in November.
Now, the Amajita star is set to ply his trade in the Netherlands, with the Utrecht reserve team as they battle in Dutch Eerste Divisie.
Utrecht have also confirmed that an option to purchase Matthews at the end of the season has been successfully negotiated into the loan deal.
"Midfielder Tashreeq Matthews is immediately added to the selection of Jong FC Utrecht," read a statement on the Dutch club's website.
"The 18-year-old South African is rented (loaned) this season from Borussia Dortmund. In addition, FC Utrecht has negotiated an option to buy on the midfielder."
Utrecht Football Director Jordy Zuidam revealed that Matthews was recommended by former Mamelodi Sundowns captain Alje Schut, who is currently their head of scouting.
"Tashreeq is a great talent from South Africa, a godsend. A compliment to our head of scouting Alje Schut, who played an important role with his network to bind the player to us," explained Zuidam.
"Tashreeq is an attacking midfielder, but he can also attack the flanks and is a technically very skilled player, light-footed and so very agile.
"He is a player with speed and a good fit in the legs. We have a lot of confidence in the talent of Tashreeq and look forward to the cooperation."