Louis Saha believes that Sunday's game at Anfield will allow Manchester United to judge how strong they are.
The French striker has been reminiscing about United's last visit to Anfield, when an injury-time effort from John O'Shea secured a 1-0 win and put them on course to take the Premier League title.
Despite Arsenal and Chelsea becoming United's main championship rivals over the past decade, an encounter with Liverpool is still the game which conjures up the most passion in supporters and players alike.
Saha acknowledges this, and despite being a member of numerous sides which have achieved considerable successes in the past, he still ranks United's victory over their arch-enemies in March as the highlight of his career so far.
"My main memory of last season is that the win at Liverpool kick-started us towards the title," he said.
"I have played there a few times now but the win we had there last season was amazing. That is one of the greatest feelings I have ever had as a footballer.
"It proved we were strong enough.
"We are going there much earlier in the season this time and there is still a long road ahead. But it does give us a chance to show exactly how good we are."
After coming through only his second full 90 minutes of the season against Roma in the UEFA Champions League, Saha is hopeful that he has finally put his injury nightmares behind him and that he will be involved on Sunday.
Sir Alex Ferguson was also complimentary of the striker after the 1-1 draw, and quashed rumours that the French international will be sold in the near future.
"What the manager said is very good for my confidence," Saha said.
"But I put myself under massive pressure all the time and I don't really need anyone else to do that for me.
"I always work hard and every game is a positive step for me now.
"I still have a little way to go but I feel good and hopefully I will soon be back to my best."
Of the side which held Roma in the Stadio Olimpico on Wednesday, only Wayne Rooney is expected to retain his place in the side for Sunday, so despite a likely place on the bench Saha feels this proves how strong United's squad has become.
"We have a strong squad and can go all the way again," he said
"Sunday is a derby game and it will be tight. It will be a good fight because both sides are contenders for the title and Liverpool are playing well.
"Obviously it is away from home but given the way we are playing, we have every reason to feel confident."