Werner marked his Premier League debut by winning a penalty that Jorginho converted to put Chelsea ahead, but the Germany star took a whack on his leg as he was tripped by Brighton keeper Mat Ryan in the incident.
The 24-year-old close-season signing from Leipzig was able to play the entire 90 minutes despite the knock and was one of Chelsea's standout performers.
When he was interviewed after the final whistle with the icing on his injury, Werner said he expected to be fine for the visit of Premier League champions Liverpool.
"The knee of the goalkeeper hit me directly in the muscle and it went very hard," Werner told Sky Sports.
"The rest of the game it hurt a lot. I couldn't do some movements because the muscle went very hard, but at the end I'm happy that we won.
"I don't care about this. In one week it will be good. We did a good game today, we did well, and I'm happy I won the penalty because it was important for our game."
Werner's pace and astute movement made him a handful for Brighton's defence even with the injury.
One of the most prolific strikers in the Bundesliga in recent years, Werner admitted it was a fascinating challenge to adapt to the different demands of the Premier League.
"The game is totally different. There is more space but you come out in the second half and the game was totally different. Brighton gave us a lot of problems," he said.
"I played against three massive defenders, you don't have that in Germany. Happy to be here and I think it was a good first game for me and the team.
"The second game will become harder because it is Liverpool. I tried and did my best and got an assist for the team.
"We had a lot of players not in the rhythm now but I think we will get better and better when we play more games together."