Mason has confirmed that defender Ben Davies remains his side's only absentee due to a lower leg problem which has sidelined the Wales international for Tottenham's last six games.
Speaking at his Friday morning press conference, Mason also provided updates on Tanguy Ndombele and Lucas Moura ahead of his side's trip to Elland Road.
Ndombele and Moura were both carrying knocks last week but both players made the bench as unused substitutes for last weekend's 4-0 victory at home to Sheffield United.
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Mason said as quoted by football.london: "Ben Davies is the only one that has not been training, Tanguy and Lucas didn't train for the majority of last week, they trained the day before the game but this week we have had a fully fit squad."
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Thank you Laura Collins