The Italian dismissed the importance of an incorrectly awarded Juan Mata strike after his side ran out 5-1 winners in Sunday's FA Cup semi-final tie at Wembley
And the Italian believes his men deserved their victory and insisted the margin is good for confidence ahead of a crucial Champions League clash with Barcelona.
Di Matteo told reporters: ''I think our team played very well today I thought it was a great performance.
"When you’re behind and the game is finishing, you might open up a little bit more but we’re pleased we scored those goals. It’s a confidence boost for us."
The Blues boss also claimed that Mata's goal, which was incorrectly awarded by Martin Atkinson despite the ball failing to cross the line, had little affect on the outcome.
"Apparently it didn’t cross the line so in this case we were on the lucky side but many times before we’ve had decisions going against us," he added.
"We didn’t just score two goals, we scored five so I’m not sure how much it matters.
''It’s good to keep this positive momentum. Winning brings that positivity within the team and confidence for each individual player."
The only negative for Chelsea was the knock picked up by defender David Luiz in the build up to Tottenham's goal and Di Matteo said the Brazilian is unlikely to feature on Wednesday.
"David Luiz picked up a hamstring injury, we’ll see him tomorrow but he looks doubtful for the next game," he continued.
''We picked up some niggles a bruises so we’ll see how they are in the next few days. The boys are looking quite fit at the moment but we’ll see how they are and assess them.
''I’m not looking too far ahead, that’s what I’ve been doing from day one. We’re pleased to be in the FA Cup final and the Champions League semi-final, it’s great from my point of view.’’