Swindon have signed Timi Elsnik and Kellan Gordon on season-long loans from Sky Bet Championship side Derby.
Midfielder Elsnik, 19, has represented his native Slovakia at youth level and signed a three-year deal with the Rams in August 2016.
Gordon, who is also 19, is a forward who made the most appearances for Derby's Under-23s last season and was a second-half substitute in the first team's Carabao Cup win over Grimsby earlier this month.
The new arrivals are Swindon's 13th and 14th signings of the summer as manager David Flitcroft looks to add more squad to his depth for the League Two campaign.