Bath will be without back-row Sam Underhill for the match after he was given a three-week ban following his red card against Pau last week, but they will have fly-half Finn Russell available again after a week’s break.
Van Graan praised fly-half Ciaran Donoghue, who was handed his European debut against Pau and left with the player-of-the-match award.
He kicked all seven conversions and sprinted from his own 22 to within five metres to help set up Beno Obano’s try, while fellow number 10 Orlando Bailey also returned from injury to feature from the bench.
“Landy’s worked his way back to full fitness,” Van Graan said.
“He [Donoghue] played really well – good decision-making, good goal-kicking, and his hunger to get the ball, that was really good to see.
“Ciaran was fantastic and Finn is back in training, so we’ll make our decision later in the week for how we’re going to go.”
