Both strikers scored for the second game running when contributing to the 4-2 defeat of Bayer Leverkusen in the Champions League and perhaps really should have claimed another goal each. The signs are encouraging that the pair can fire the Reds to more glory ahead of Sunday's Manchester derby with City.
Of course, Rooney netted twice in the famous victory at the Etihad Stadium last season before van Persie hit a dramatic winner from a free-kick in stoppage time. It was one of five matches when the strike pair both got on the scoresheet in the Dutchman's debut campaign, with three of them coming in the space of 15 days in December.
"I can tell now that the two of them were doing quite a lot of work together and we want to try and make it a partnership so people are saying: 'My goodness, this is tough to play against'," stressed Moyes.
"But I don't want to exclude Chicharito and Danny Welbeck as well as I won't be able to play them in
20.10.12 Stoke City (H) Rooney 2, van Persie
7.11.12 Braga (A) Rooney, van Persie
1.12.12 Reading (A) Rooney 2, van Persie
9.12.12 Manchester City (A) Rooney 2, van Persie
15.12.12 Sunderland (H) Rooney, van Persie
14.9.13 Crystal Palace (H) Rooney, van Persie
17.9.13 Bayer Leverkusen (H) Rooney 2, van Persie