The first time Chelsea played Arsenal this season, they lost 3-0. But, the reverse fixture at the Stamford Bridge ended in a dominant 3-1 win, much to the delight of Cahill.
Alonso headed in the opener in the first half, before a solo goal from Hazard came in the 53rd minute. Fabregas then came off the bench to score the third goal for the Blues.
However, Giroud scored a header in stoppage time, but it didn’t do much to dampen the jubilation after the final whistle.
“It was fantastic,” Chelsea defender Cahill told Sky Sports. “In football you get the opportunity to put things right.
“I remember the feeling after we got off the field at Arsenal and we were determined to put things right. We did just that.
“We’re confident playing at home. We knew a win would be vitally important for us against a massive team.
“We practice this formation, we practice our tactics. The manager is very thorough with that. We take that on board and try to deliver.
“We created a lot and could have had more goals but the second goal was a special goal from a special player.
“The next goal was important after half-time and for me that killed the game.”
Hazard was deservedly given the man-of-the-match award after his first goal of 2017 arrived in picturebook fashion.
“It is always good to score beautiful goals against a massive team,” he told Sky Sports.
“We scored three beautiful goals and we deserved to win this game.”
On his stunning strike, Hazard added: “I try this in all games but it is not like this in every game. I know I need to score more goals, so I am happy.
“We created a lot of chances but on the counter-attack we can so better.”