Wood is one of the best strikers in the Championship and has been in good form for the West Yorkshire outfit for the past two seasons.
The 25-year-old scored scored 13 goals and provided four assists in the Championship in 2015-16, and scored 27 goals and provided four assists in the league last season.
According to a report in The Birmingham Mail, West Bromwich Albion are interested in re-signing Wood this summer.
The Yorkshire Post reported last week that Leeds had turned down an offer of £12 million plus add-ons from Burnley for the striker.
Leeds head coach Christiansen has (jokingly) suggested that if an offer of £200m comes in for the former Leicester City and West Brom striker, then the club could consider selling him.
Earlier this month, Paris Saint-Germain signed Brazil international forward Neymar from Barcelona for a transfer fee reported by BBC Sport to be worth £200m.
“If they (rival clubs) give me £200m like for Neymar, perhaps we can talk about that,” Christiansen told The Yorkshire Evening Post about Wood.
“I believe that in the programme he said he feels happy and that after I signed he said he would be happy staying here. Why shouldn’t he?”