Herbst joined the Bulls after the 2018 season and spent a year and a half in the colours of the Pretoria team, where his experience assisted immensely on the field and also in the grooming of some of the younger front rowers.
Herbst, who previously turned out for the Sharks and Ulster, thanked the Bulls for the memories.
‘My time at Loftus may have been short but it was packed with memories. Thank you for welcoming me into the Bulls family and allowing me the opportunity to play in the blue jersey.’
Bulls director of rugby Jake White thanked Herbst for his services and wished him well with his new endeavour.
‘Wiehahn is an experienced prop who has learnt his trade internationally. We know he will add value at the Lions, and wherever he travels beyond that. We wish him all the best with his path ahead, and hope he grows from strength to strength.’
Photo: Bulls Rugby/Twitter