La Stampa says Kaka is upset over Ancelotti's insistence he play on the right-side of his midfield.
"I am most decisive centrally," said Kaka after Milan's 1-1 draw with Catania.
"There is tension because we are expected to win."
After yesterday's draw, vice-president Adriano Galliani will hold crisis talks with Ancelotti at Milanello today.