The centre half played in the 3-1 defeat at Millwall and played and scored for City Reserves on Tuesday afternoon in their 4-4 draw against MK Dons.
Speaking to the CT, Wood said: "I am fighting fit and looking Saturday's big derby game after a good week in training.
"I have had to be patient so far this season but I hope that I took my chance to impress the manager when I played against Millwall in our last game. Unfortunately I didn't last the whole 90 minutes because I cramped up and had to go off but I felt I did well up until that point.
"I was getting problems after about 50 minutes with my calf muscles which was just a result of the fact that it was my first match. It got that bad that I couldn't run at one point so I had to go off.
"I have played reserve games and stuff in training but it is never the same as a first team game, but I am fine now and played in this week's match against MK Dons alongside Ben Turner who is fit again.
"I scored the first goal - a typical one for me with my head from a corner - so I was pleased with that."
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