Edited sentence: Dida has been dropped out in matches against Reggina Calcio and ACF Fiorentina in favour of Kalac.Dida would then suffer an injury several weeks after this incident, and his back-up Zeljko Kalac seized the opportunity and ended matches with a number of clean sheets.In the match, Dida misjudged a low middle shoot from Esteban Cambiasso, giving their rivals a 1-2 victory, instantly putting away the momentum the team had gained earlier in the second half.Kalac also performed a number of high quality saves against Udinese Calcio and ACF Fiorentina, and although Dida has recovered from his recent injury, it seems that coach Ancelotti will continue to place Kalac instead of Dida.Kalac has also received huge praises from the media, Ancelotti, his Milan teammates, and even his colleague Sebastien Frey (in a post-match interview).Recently, Dida's performance has been heavily criticized by the media with his frequent mistakes, but one that really irritated the Milan fans in particular was his high profile blunder in a match against Internazionale.This is the first time Dida's position as a starter is under huge threat, as previously although he made blunders, he always comes back next time to play in a starting role (Back then, Milan regarded Kalac as being inferior to Dida, no matter how bad his form is)