Le Roux spent the last year and a half with Stellenbosch in the second tier and was a teammate of Webber, who has already represented Bafana Bafana.
SuperSport United CEO Stanley Matthews says that Webber and Le Roux will join a promising group of youngsters at the club.
“Luke and Jamie join our established youngsters like Teboho Mokoena and Sipho Mbule, along with new recruits such as Darren Smith and Dylan Stoffels. Fagrie Lakay was not getting the game time he needs and we decided to let him go out on loan but he is still in our plans and hopefully will get a chance at Ajax," Matthews said in a press release.
“We have a host of young exciting players who can help take us forward to sustained future success.”