Much like his opposite full-back, Rafael has given those ahead of him a wealth of help in attack and is making life significantly harder for the Liverpool defence as a result.
However, the young Brazilian has shown his decision-making to not be amongst his best assets, taking more complex clearance routes when not necessary.
He took down a lofted through ball just before halftime with expert grace, creating a clear-cut chance for Van Persie to score that was unfortunate not to find the back of the net.
Rafael's poor clearance in the United box almost led to a Daniel Sturridge goal in the final few minutes, heaping unnecessary pressure on his side when it matters most.
Nemanja Vidic: 7.0
Despite speculation that the pair might not be able to operate as fluently together in their later years, Vidic and Ferdinand have looked assured in the opening exchanges, with the Serbian posing a particularly astute presence in the air.
The Serbian will ultimately go down as the scorer of the second goal, although it was Patrice Evra's well-directed header that made the opportunity.
The introduction of Daniel Sturridge has made the United defence's job that much more difficult, and Vidic could do with closing his opponents down with a bit more fervour.
He was replaced by Chris Smalling on 80 minutes.
Rio Ferdinand: 8.0
The more assured of United's centre-backs thus far, Ferdinand is showing that while his legs might age, the mind lingers on, and Luis Suarez has found it all too difficult to find his way around the wise veteran.
Ferdinand has been a calm and cool asset at the back, taking the easy option with most clearances.
Patrice Evra: 8.5
In a very Evra-esque display, the Frenchman has provided Kagawa with a lot of ammunition and outlets down the left wing, but has also allowed Stewart Downing a decent amount of room as well.
It was Evra that put in a cross for Robin van Persie to open the scoring, a clearly drilled effort meant for nobody other than United's top scorer.
That said, the 31-year-old could still do with sewing things up at the back and was fortunate not to get caught in a very precarious position in the 25th minute, attempting to dribble out of his own area, only for Joe Allen to pounce.
After creating the opener, it was Evra's turn to play the role of finisher in the 54th minute. Although Nemanja Vidic got a definitive touch, Evra did excellently to latch onto a Van Persie free-kick and double his side's lead.
He picked up an undeserved free-kick on 74 minutes as a result of a Stewart Downing dive.
Phil Jones (Substitute): 6.0
In an effort to correct some defensive lapses, Phil Jones was put on in place of Shinji Kagawa 15 minutes from time, adding some security to the Red Devils' back line.
Chrs Smalling (Substitute): 6.5
With Daniel Sturridge causing all sorts of problems to the United back line, Smalling was introduced in order to shore up the Red Devils' back line with 10 minutes left.
He was slightly hasty in his clearances, making snap decisions when there's more time on hand than perhaps believed.