On April 26, 2017, the New York Red Bulls announced the signing of Honduras U-20 international Douglas Martinez. The attacking player is on loan from CD Vida for the rest of the season, and has been signed by NYRB II - the Red Bulls USL team - not the first team that plays in MLS.
The news that Martinez is on loan carries with it the implication that his stay is only temporary. But it should be noted that the loan-to-buy model is quite common in MLS, and seems to be particularly common for RBNY.