“There’s a risk him going out and eating Kobe beef tonight. We feel like it’s much better he plays rugby than goes out and eats beef,” said Jones.
“He loves playing rugby, the best way to keep him fit is to play him and he’s an influential player in our team.”
In announcing the squad for Thursday’s game, Jones said it was important to manage players’ workloads.
“It is our best 23 and we have looked at some players that would benefit not playing in this game so have kept them out of the 23,” he said.
“But it is a great opportunity for another set of players to do the team proud.”
With the United States playing their first game of the tournament, Jones is expecting a physical test in the Pool C encounter.