From Cricinfo:
With Shamsi and Phillips, the other overseas players remaining in the Royals' roster are David Miller, Chris Morris, Liam Livingstone and Mustafizur Rahman. They had young South African quick Gerald Coetzee in the squad for the first half as a replacement for Livingstone, but with Livingstone expected to be available for the second half, Coetzee will no longer be with Royals.