Manchester United visit West Ham looking for the victory that will guarantee they go out of 2007 where they came in, on top of the Barclays Premier League table.
But it's just over a year since United last visited Upton Park, when the Hammers pulled off their first ever home Premier League victory over the Red Devils on Alan Curbishley's debut in charge.
Sir Alex Ferguson will not want a repeat of that just two days before his 66th birthday.
Manchester United have won twice as many league games as West Ham this term (14 to seven), including the last five; the Hammers are striving for a first win in five on home soil.
Over Christmas, the champions won 2-1 home to Everton and 0-4 away to Sunderland; the Hammers won 1-2 at Middlesbrough and were held to a 1-1 draw by Reading at Upton Park.
West Ham have conceded more Premier League goals to Manchester United (49), than to any other club in the Premier League. That's despite doing the double with two 1-0 victories last season.
WEST HAM UNITED
Highest achievable after Saturday's matches: 9th
Lowest could fall: 11th
1. Only two of their seven league wins have been secured in front of the home faithful, against Middlesbrough and Sunderland.
2. Need to score once to total 3,000 goals in top-flight football.
3. Their 18 matches this season have produced just 39 goals (23 for, 16 against); at 2.17 it's the lowest goals per game average in the Premier League.
4. A stronger second half side, with 15 of their 23 league goals scored after the break (65%).
5. Own the third weakest home form in the highest league with 10 of their 26 points picked up in east London; only Derby (five points) and Middlesbrough (nine) have poorer form in front of their own supporters.
6. Top six clubs, Manchester City, Arsenal and Everton, are the only ones to have left Upton Park this season with maximum points.
7. Managed just one league clean sheet at Upton Park; the 3-0 eclipse of Middlesbrough on 15 September.
8. The New Year's Day fixture is a London derby, away to Arsenal.
Highest achievable after Saturday's matches: 1st
Lowest could fall: 2nd
1. Won 19 of 23 in all competitions, and lost one of 17.
2. The only club to have won 14 Premier League matches this season; but lost twice as many league games as Arsenal (two to the Gunners' one).
3. Boasting the tightest defence in the highest league; just nine goals shipped in 19 outings, at one every 190 minutes (three hours nine minutes) of Premier League football played on average.
4. Won 14 of the last 16 Premier League matches, losing just one of the 16.
5. Kept clean sheets in 10 and failed to score in one of the last 16 league outings; the blank being the 1-0 loss, away to Bolton on 24 November.
6. Not lost in any league game this term in which they have scored; won 14 and drawn two of 16.
7. Scored first in an unequalled 15 Premier League matches; won 13 and drawn two.
8. Conceded only two goals in the last 15 minutes of Premier League matches this term; only Arsenal and Liverpool can match that.
9. Beaten Everton, Birmingham, Aston Villa, Liverpool and Sunderland on their league travels, and been beaten by Manchester City and Bolton on the road.
10. The New Year's Day fixture is home to Birmingham.
KEY PLAYER NOTES
WEST HAM UNITED
Dean ASHTON is West Ham's top scorer with five goals.
ASHTON and BOWYER are the Hammers' joint top Premier League marksmen as four goals a piece.
Robert GREEN has saved three penalties awarded against the Hammers in the Premier League this season.
Matthew UPSON and GREEN are the only remaining players to have been on the field for every minute of every one of West Ham's Premier League matches this season.
BOWYER is a double shy of 50 career Premier League goals (Leeds, Newcastle and West Ham).
Nol SOLANO needs a hat-trick to total 50 Premier League goals (Newcastle, Aston Villa and West Ham).
James COLLINS will be making his 100th career league appearance (Cardiff and West Ham).
Jonathan SPECTOR will be facing the club where he was a trainee.
If on the field from the outset:-
Hayden MULLINS will be making his 350th career league start (Crystal Palace and West Ham).
Cristiano RONALDO is Manchester United's top scorer with 17 goals.
RONALDO is also their leading Premier League marksman with 12, and leads the race for the Barclays Golden Boot.
RONALDO, who has scored three times in two games and is the only United scorer in double figures, is a hat-trick shy of 50 Premier League goals - all for Manchester United.
Michael CARRICK, Rio FERDINAND and Carlos TEVEZ will all be facing their former club; the first two started their professional careers with the Hammers.
If on the field from the outset:-
Louis SAHA will be making his 50th Premier League start for Manchester United.
Chris EAGLES will be making his 50th club league start (Manchester United, Watford and Sheffield Wednesday).
Long term injury, Gary NEVILLE will be making his 350th Premier League start for Manchester United.
HEAD TO HEAD
Manchester United are one of three clubs West Ham did the double over last season; Blackburn and Arsenal were the others.
West Ham were one of two clubs to do the double over United last term. Arsenal was the other.
The victory in this fixture last December was West Ham's first in 12 home league games against the Red Devils since another 1-0 triumph on 22 April 1992 in the old First Division.
Home and away
League (inc PL): West Ham 36 wins, Man United 45, Draws 23
Prem: West Ham 3 wins, Man United 14, Draws 7
at West Ham only
League (inc PL): West Ham 24 wins, Man United 11, Draws 17
Prem: West Ham 1 win, Man United 4, Draws 7
LAST SEASON'S CORRESPONDING GAME
West Ham United 1-0 Manchester United
17 December 2006 - Ref: Phil Dowd
West Ham scorer: Reo-Coker 75