Ulster and Ireland hooker Rob Herring has revealed the impact which Springboks loosehead prop Steven Kitshoff has made since he joined the province after last year's Rugby World Cup in France.
Ulster manager Dan McFarland showered praise on Springbok prop Steven Kitshoff following his team's narrow 22-21 victory against Leinster in the United Rugby Championship.
Ulster claimed a famous victory over Leinster as they won 22-21 at the RDS in a hugely entertaining United Rugby Championship (URC) clash on New Year's Day.
Glasgow made it five wins from six to go top of the United Rugby Championship table with a 33-20 bonus-point win over Ulster.
Ulster came from behind to beat the Lions 24-17 at a windswept Kingspan Stadium scoring three tries to the visitors' two in game which was in the balance throughout.
Springbok veteran Duane Vermeulen played his final game for Ulster in the United Rugby Championship (URC) quarter-final defeat to Connacht on Friday.