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“I mean, it's the elephant in the room, I'm walking around like an old man so it's hard to hide too much,” Wood, 38, admitted.
“I've done a bit of damage to my knee, a couple of weeks back I did a trail run and did a bit of damage then and probably ignored the signs a little bit and just topped her off a couple of mornings later when I was mucking around with some friends in the gym.
“It's not ideal but I'm fine, I'm good. If I have to, I can jump up and down and do some star jumps and all that, it's just a little bit uncomfortable.”
Pressed on whether he'll be inhibited for the Great Race, Wood replied: “It will be fine.
“I'm generally a one-panadol kind of guy, I don't like taking painkillers and that sort of thing, so I might just have to up the dose to two panadols and it will be no problem.
“It's just part of this, I mean, I'm lucky enough I'm here racing the Porsche and I'm here racing with Nick in the R&J [Batteries] car so there is a lot of walking backward and forward.
“It doesn't like that, but it will be fine for Sunday… I might be flat on my back Monday and Tuesday.”
Percat and Wood finished Practice 3 in 18th, the same position that Wood wound up in co-driver practice yesterday afternoon.