The ESPN analyst, whose son plays at Michigan, posted this reply on his Twitter account after the Wolverines beat Michigan State last week: ''Sparty not only whines but now just dumb!! Couldn't get into UM??"
During the game, Izzo didn't like it when the Spartans' student section was chanting, ''We hate Dak-ich! We hate Dak-ich!''
After the game, Izzo was told about Dakich's disparaging tweet.
"Twitter got him in trouble and he earned it,'' Izzo said . ''I'm surprised ESPN would let somebody say something like that that works for them. ... Danny owes our fans and our students an apology.''
A message seeking comment was e-mailed to ESPN.
More than an hour after the game, Dakich appeared to delete the aforementioned tweet.