Hawks coach Paul March said: “Richie probably needs just another week. He’s seeing the physio and we’ll take it from there.”
March added: “We travel to Toulouse on Thursday, and we need to stick together as a group and keep battling together.
“It’s a massive game for us, and it’s the first time we’re going over there to play.
“It’s something different – we’ll be away for four days and the lads can get to know each other away from the field, but we’ll be professional with that and hopefully we can come away with the three points.”