Rangers have signed pre-contract agreements with Glen Kamara and Jordan Jones.
The Ibrox club confirmed that the 23-year-old Dundee midfielder and the Kilmarnock winger, 24 will join the Light Blues in the summer on four-year contracts.
Finland international Kamara, who came through the ranks at Arsenal, has been at Dens Park since 2017.
Jones, a Northern Ireland international, joined Killie in 2016 from Middlesbrough and on his official Twitter account, he said: "Unbelievably proud day for me and my family, I've waited for this moment for a long time and today is a dream come true! #WATP
"I've said it before and will say it again I couldn't be more grateful to @KilmarnockFC for their support and backing the last 3 years.
"Without them I couldn't of achieved this dream. I have give everything for the club and will continue to do so. Thankyou."