Billy King has joined Rangers on loan until the end of the season.
The winger will link up with the Ibrox side on a deal until the end of the campaign.
Speaking to Hearts News, head coach Robbie said: “Billy’s at a stage where he’s looking for regular game time, and that’s not something that we can guarantee at the moment.
“We’re fortunate to be in the position where we’ve got an abundance of options on the wing. Sam Nicholson and Jamie Walker – who’s almost at full fitness – are two of the best young players in the country and are being pushed all the way by Arnaud Djoum and Prince Buaben.
“The emergence of Dario Zanatta has given us even more options in there, so it makes sense for Billy to go out on loan to continue his development.
“He’ll get a run in a team that is pushing for a title, so it will benefit him in the short term and Hearts in the long run, when he comes back an even more confident player.”