Arno Botha, Morné Mellett and David Bulbring will all miss the Bulls' Super Rugby warm-up match against the Stormers.
Botha (back), Bulbring (shoulder) and Mellett (back) sat out the Bulls’ training session this week and will be assessed following the match on 1 February at the Peter Mokaba Stadium in Polokwane.
Without Botha, the Bulls’ loose-forward division now features Deon Stegman, Wiaan Liebenberg, Jacques Engelbrecht, Jacques du Plessis, Pierre Spies and Jono Ross.
The locks include Flip van der Merwe, Paul Willemse and Grant Hattingh; and the prop department has Dean Greyling, Frik Kirsten, Werner Kruger and Marcel van der Merwe.
Meanwhile, the Bulls have reportedly signed former Cheetahs and Sharks flyhalf Jaques-Louis Potgieter on a two-year deal. Potgieter has been playing for French Top 14 club Bayonne in 2012-13 and second division team Dax for the 2013-14 season.
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