Chelsea have won only two of their last eight games in all competitions to slip four points off the lead in the Premier League.
However, it is only six months since Di Matteo won the FA Cup and then inspired Chelsea to become the first London club in history to win the European Cup.
On top of this, despite the recent bad run Di matteo has won 62% of his games in charge which is a very decent percentage in anyone's book.
Abramovich keeps his cards very close to his chest though, and it was no surprise to see the axe fall- for the ninth time since he arrived in West London in 2003. But good win ratios have not helped his predecessors either.
Avram Grant won 67% of games but still faced the chop, and Gus Hiddink 73% has the best recent record on show. Even Jose Mourhino, considered to be the best Chelsea boss in the Abramovich era won only 67% of games.
In comparison to relative failures, Andr Villas Boas (48%) and Luiz Felipe Scolari (56%) - Di Matteo's record was a good one.
"I know Roberto well and he is a good man so this is sad news. It's also quite incredible that he can be sacked so soon after winning the Champions League - and the FA Cup for good measure. It must be a record, and not a good one. It just shows that patience now seems a rare commodity at some clubs and that is a shame because the record of other successful clubs shows that stability can breed success. I am sure that it will not be long before another club recognises Roberto's qualities, and that he will soon be back in football." - PFA chief executive Gordon Taylor.