The New Zealand global is entering the final 12 months of his current deal at Elland Road and has been linked with moves to Burnley and Besiktas among others.
Wood has been with Leeds since the summer of 2015 and for them has notched forty-four goals in eighty-six appearances in all competitions, a tally which includes thirty in the Championship last season making him the division's top scorer.
Leeds had tried to stave off the interest by offering Wood a new three-year contract, which would extend his deal by a year to 2019 and up his wages, which are believed to be around £15,000 a week.
Leeds have insisted Wood is not for sale despite reports Burnley are prepared to increase their offer to £20million.
The prolific forward hit 30 goals in all competitions for Leeds a year ago, leading to strong interest from a host of suitors.
Leeds have already secured new deals for midfielder Eunan O'Kane and defenders Gaetano Berardi and Liam Cooper.
The striker became only the sixth Leeds player to achieve 30 goals in a single campaign, with the others including Tom Jennings (1926/27), John Charles (1953/54 and 1956/57), Peter Lorimer (1967/68), Lee Chapman (1990/91) and Jermaine Beckford (2008/09 and 2009/10).