After the worldwide excitement leading up to El Clasico in Spain, the attention now shifts to Manchester, England, as one of the most fierce derby matches on the planet takes place.
Fallen giants Manchester United host their superstar-laden neighbours Manchester City in a battle that could dictate the futures of both club's managers.
David Moyes will be looking to make it three wins on the spin, after his team rescued their Champions League tie against Olympiakos at Old Trafford and had an impressive win this weekend against one of the Premier League's most in-form sides, West Ham.
Manuel Pellegrini will be looking to fortify his team's Premier League title-winning chances after recently crashing out of the FA Cup and Champions League to Wigan Athletic and Barcelona.
The Sky Blues lie in third position in the table, per BBC Sport, and are six points behind leaders Chelsea.
However, they have three games in hand on the West London club, and will need to win at Old Trafford to make this slim advantage pay for them.
Will Moyes Play Rooney, Mata and Kagawa together?
With the enforced absence of Robin van Persie for the match, after sustaining a knee injury against Olympiakos, David Moyes chose to play his three most flair-driven players together for the trip to West Ham.
The result, though only a solid 2-0 victory, was a taster of what could be about to come with the three little wizards playing as a unit.
With Marouane Fellaini sitting deep and protecting, the three were able to play close together and take the game away from their East London opponents.
This could be a tactic that Moyes plays against City, forcing Yaya Toure onto the back foot.
However, if Moyes gives in to his pragmatic ways, he will sacrifice this chance and go for a more defensively secure 4-4-1-1.
This would be a mistake: Chelsea set the blueprint of how to beat Manchester City tactically, and any variation of 4-4-2 will just play into Pellegrini's hands.
United's home form has been shocking this season, and City playmaker David Silva gave his opinion on their decline.
He said, per Jason Burt's article in The Telegraph:
Sir Alex Ferguson was a legend at Manchester United but at some point he would have to step down and perhaps that has affected them as a team. But it’s part of football, you have to deal with it.
Silva is correct in his assessment, and United will need to prove on Tuesday night that there is life after Fergie. The game has come at a perfect time for Moyes and his men, and with a set of brave tactics could see United achieve a shock victory.
The Brilliance of Yaya Toure
When Yaya Toure signed for City from Barcelona for a reported £24 million deal in 2010, per BBC Sport, many eyebrows were raised at the size of the fee in comparison to the type of player that was arriving at the Etihad Stadium.
Toure was viewed as very good player, with a versatile edge, but it was questionable if he was a world-beater.
Those questions exist no more.
The 30-year-old Ivory Coast is now considered one of the best midfielders in Europe, and his record for City has been phenomenal.
Toure has shone in both the Premier League and European competition this year, scoring 17 goals in 34 combined appearances, and also providing five assists, per WhoScored.com. This is such a fantastic return for a player who was once considered a defensive type.
Everything good that City does flows through Toure. With Fernandinho acting as a shield for the player, he can release himself from any shackles and play the game he wants.
If Yaya plays well against United on Tuesday night, the Red Devils will not win the match.
Toure is an example of how a player can peak later in his career. Now into his thirties, he will have to manage his fitness more closely.
But at Old Trafford, with a title to fight for, he can do what he does best: Power his team to victory from the centre of the park.