Nicky Cowley followed his brother, Danny, to Huddersfield from Lincoln City in September
Huddersfield Town assistant manager Nicky Cowley has been charged with using "abusive and/or insulting words" by the Football Association.
It is further alleged that Cowley "made reference to nationality" when speaking to a member of Nottingham Forest's coaching staff at the conclusion of their Championship game on 21 December.
Huddersfield won the match 2-1.
Cowley, who assists his brother Danny at Huddersfield, has until Tuesday, 17 March to respond to the FA charge.
A club statement said he "strenuously denies" the allegations and will be requesting a personal hearing.
Source: bbc.com