Former Springbok captain Gary Teichmann believes Munster's new signings RG Snyman and Damian de Allende will make a big impact at Thomond Park.
The World Cup winning pair have already made a good first impression on their new team-mates since the province resumed training in Limerick last week and will be available for selection when rugby resumes and the Reds face old rivals Leinster on August 22.
Teichmann, who led the Springboks against the Lions in the 1997 series and during their record-breaking run of wins under Nick Mallett, has been particularly impressed by Snyman who will add size and skills to the Munster second-row.
"I don't know him well, but I've watched him play quite a bit and he's an exceptional player," the former No 8, who once lined out for Clontarf, told the Irish Independent.
"I think he was unlucky not to get more game-time (at the World Cup), he's certainly got the skills, the size - he's got everything. He'll be a fantastic signing for Munster.
"I'm sure he's one of those players who will give 100pc every game and when you sign an overseas player you want to make sure that's the case.
"Damian has been around a while, he had a fantastic World Cup. Certainly, he's a hard, get-over-the-gainline type of player. If that's what you're after, he'll give you that."
Teichmann, meanwhile, is wary of South Africa making a wholesale move into northern hemisphere rugby.
"Coming north, to get some of the big unions (franchises) you would have to have the European Champions Cup as part of it.
"In my view, you always want to play against the best and no one would disagree that New Zealand will always be the best competition."