Other players doubtful for the Test against Ireland are Matthew Burke (dead leg) and Mat Rogers (rib cartilage).
Trinder's career stalled last term because of complications with a dead leg when bleeding under the muscle led to calcification.
Blues team-mate Gareth Cooper, Dwayne Peel and Mike Phillips, who has a dead leg, are the other nines in the squad.
Midfielder Sammy Clingan had a dead leg, defender George McCartney was suffering from blisters and forward Warren Feeney reported a slight virus.
Barkley is the favourite but he picked up a dead leg in training on Wednesday, although he says he is recovering fast.
With skipper Kevin Sinfield absent with a dead leg, Smith added the conversion but Rovers dug in to ensure that the Rhinos were not going to have things all their own way.
Hooker Chris Wells was carried off after just three minutes with a knee ligament injury that could keep him sidelined for a month, and full-back Kevin Morgan limped off with a dead leg.
Former Great Britain rugby league captain Farrell will miss the match after picking up a calf strain, while he has been joined on the sidelines by Barkley after the Bath man picked up a dead leg during training.
Leeds also lost Hall with a dead leg, while Bulls stand-off Ben Jeffries was helped off in the second half after taking a heavy blow to the head but, in an ill-tempered West Yorkshire derby, tensions again boiled over at the end when punches were traded between both sets of players.
St Helens entered the game with a depleted squad after Kyle Eastmond's groin problem meant that he joined dead-leg victims Jonny Lomax, Chris Flannery and Tommy Makinson on the sidelines.
They added circuit workouts box jumps, wall sits, Romanian single leg dead lifts (think multiple knee bends while holding dumbbells), with 30 seconds between stations, and five minutes between circuits.
One cow had died giving birth and had simply been left with her dead calf's leg protruding.
It was reported that a migratory bird - a common European bee-eater - caused alarm in a village in south-eastern Turkey after it was found dead in a field with a metal ring around its leg stamped "Israel".
Try beach pedicures in Bali, leg-hair threading in Vietnam or having your dead skin nibbled off by doctor fish in Hong Kong.
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