Giroud reveals why he left Arsenal and complains about lack of playing time under Sarri
"I am certainly not happy to stay on the bench, but I keep the frustration for myself and try to turn it into positive energy to work hard in training," he said.
"Every time I play from the beginning I try to bring something to the team, to do my part, but of these 14 games I've played maybe only half, so it is a bit difficult to find continuity. In the last months, it was not easy.
"However, the first six months were good. I needed to leave Arsenal because Arsene Wenger wanted to play with a different type of striker. My time at the club was over and I was very happy to sign for a great club like Chelsea. I integrated with my teammates, I played a few games and we won the FA Cup. Then I had the opportunity to go to the World Cup and it was fantastic.
"However, when I came back, it was a bit different. There was a new coach and I had to start over, show him that I'm ready to play for this team. It was a bit difficult, especially the last month, but I will continue to fight for my place.
"The match against Arsenal? It will be a special moment for me, the first time that I will return to the Emirates since I moved to Chelsea. I cannot wait to play this game, we need to win to keep them away from us. Emery? I think he is doing well. They will have to be patient but what is certain is that they will have a rosy future," Giroud concluded.