BARNSLEY striker Chris O'Grady, who is on Millwall's list of summer targets, has been the subject of a £500,000 bid from south London rivals Charlton.
O'Grady will now discuss personal terms with the Addicks after their offer was accepted.
The 28-year-old, who scored 14 goals for the Tykes despite their relegation to League One, has been on the Lions' radar since the end of the season.
Manager Ian Holloway wants a powerful goalscorer to lead the line next campaign and had earmarked O'Grady as a possible signing.
But it looks unlikely that Millwall will match Charlton's offer for the forward.