Ray Parlour clattered into Ronaldo midway through the second half of the Boro game but Ferguson is hopeful that he will be OK for the visit of Spurs.
'Hopefully Cristiano will come through because he got a bad knock at the end. We need him for Tuesday because we are down to the bare bones. Kieran Richardson and Liam Miller have both had a bug but should be okay for Tottenham. We just have to keep going the best we can.'