Chelsea striker Olivier Giroud scored the only goal of the game as Chelsea beat Liverpool 1-0 on Sunday.
After scoring the goal against Liverpool, Giroud headed straight to the dugout to hug Luiz, who remains out of action with a knee injury.
Asked to explain the reason for his celebration, Giroud said: “David Luiz is a good friend, so I was very pleased to dedicate him this goal because he is going through a tough period and he is coming back.”
When then asked about Giroud’s celebration in the post-match press conference, Chelsea boss Antonio Conte said: “I didn’t see it. I tried to use this moment to give some advice to my players.
“For sure, tonight, I want to watch this celebration on TV, and I hope to see this celebration many times over the rest of the season.
“I don’t know if there is a special relationship. They are team-mates.”