Hull K R v Warrington preview.
Wood back in Wolves fold
Warrington, who have lifted the Tetley's Challenge Cup three times in the last five years, face a tricky opener at Hull KR.
The Wolves, who have called up prop Paul Wood for the first time this season after two comeback matches with partner club Swinton, have lost on their last two trips to Craven Park and have bitter memories of their shock quarter-final defeat there in 2006, when the Robins were in the National League.
The match will mark the 200th career appearance of Warrington second rower Simon Grix.