The Rams have been silent in the closed season but have now lodged an audacious bid said to be around £7m for Sheffield Wednesday's Argentinean striker Fernando Forestieri.
Forestieri scored 15 goals last season and helped Wednesday to the Play-offs.
The striker still has another 3 years on his Wednesday contract, after signing from Watford for around £3m.
Derby County Chairman has said that he will back Pearson on signings when needed, but has also rubbished the speculation that he could be willing to put £50m at Pearsons disposal for players.