Talismanic Tongan star Lutui will hit a hundred games for the club if he makes a memorable appearance at the national stadium.
But the 31-year-old, who recently signed a new two-year deal at Sixways Stadium, admits the only celebration he is keen to record is a big Guinness Premiership victory.
"It's a big day for me if I get the 100th game - but more importantly it is a big day for Warriors," said Lutui.
"I'm looking forward to the game as we need to start well as we look at this next run of fixtures.
"It's important for me that I just concentrate on the game and not the figure. What is important is that I play my part for the team and we get a win on Saturday. It would be great, though, to do that on my 100th at Wembley.
"I can't really remember my first game, I remember playing at Sixways the first time, though, and the noise we had.
"I have lots of good memories of my time and I am always proud to represent my club."
Lutui admits confidence in the Warriors camp was given a boost by the manner of victory over London Irish last weekend.
And he believes the thousands of Worcester fans making the trip to the capital can give Warriors a real boost.
"For us, it was a big win last Saturday," said Lutui. "We needed to get the momentum because we knew this week would be harder and tougher than last week.
"We play well but we still have more areas to work on, we are all looking forward to the game.
"People talk about the Six Nations and players away, but at the moment we don't really think too much about that and how many players teams lose.
"We just focus on our preparation, that is the main thing and that is all we care for. We don't care who they put on the field and who we face, we just make sure we are right and that we are ready to go.
"I heard about the numbers of fans that are going with us, that will be great for us," he added.
"At away games it is always advantage for the home team, but I have heard there are lots of fans going down to cheer us.
"I now look forward to the game and we will see if we get a result, if that happens then I will have two things to enjoy."
