Benhard Janse van Rensburg's enthusiasm and energy have won over his new England team-mates, says George Ford.
Janse van Rensburg, 29, was born in South Africa and appeared for the Springboks under-20 side, but, after a Rugby Football Union appeal to World Rugby over his eligibility, will qualify to play Test rugby for England in July after five years in the country.
He has been named on the bench for England's non-cap fixture against a France XV in Vannes on Friday.
"He's been brilliant, he's like an excitable kid," said Ford, who will captain England in the match.
"He's got so much energy and you can tell he's just obsessed with playing rugby.
"He not only loves the game, but loves training as well. He gives us loads of energy and we're looking forward to seeing him play."
The selection of Janse van Rensburg in the squad has been criticised by some.
Former England scrum-half Danny Care said talent which has been nurtured in England and through the nation's age-grade system should be prioritised.
Head coach Steve Borthwick said that that rest of the squad "think the world" of Janse van Rensburg since he was called up to a training camp for the first time in May.
"He's a wonderful character as well as being a really top-quality rugby player, so I'm looking forward to seeing him seeing him play when he comes on to the pitch on Friday night," Borthwick said.
