Manchester United's visit to face Liverpool heralds the return of the Premier League after the second international break of the season, but which club's players travelled the furthest to represent their country?
Jose Mourinho has previously expressed his concern at having a lack of control over his squad during such fortnights, but a deeper look at the travel map may cause Jurgen Klopp more angst ahead of Saturday's clash, live on Sky Sports Premier League.
Both sides have been forced to alter their preparations after Sadio Mane and Marouane Fellaini picked up injuries for the respective countries during crucial World Cup Qualifiers.
Accounting for those setbacks, United will have 13 players available for selection arriving back at Carrington, having travelled 67,424 miles between them. In comparison, Liverpool's 18 fully fit international players will have travelled 72,456 miles.
Both Philippe Coutinho and Roberto Firmino travelled the furthest in the Liverpool squad, clocking up 13,584 miles each. The Brazilians had already been to La Paz for a 0-0 draw with Bolivia, in which Coutinho played 66 minutes and were in Sao Paulo for the 3-0 win over Chile in the early hours of Wednesday morning - with Firmino replacing Coutinho in the 86th minute.
Klopp will have to make a decision on whether to start the pair in the Saturday lunchtime kick-off, with the manager's conundrum made harder by Mane's absence.
The Senegal international suffered a hamstring injury in his country's 2-0 win over Cape Verde but Mo Salah will be buoyed on his return from travelling 4,495 miles to and from his native Egypt, scoring the dramatic stoppage-time penalty to defeat Congo 2-1 in Alexandria which booked his place at the World Cup.
Of the 18 Liverpool players in the matchday squad for the 1-1 draw at Newcastle, Alberto Moreno, Joel Matip, Loris Karius and James Milner were the only international absentees.
Conversely, United's Sergio Romero, Victor Lindelof, Matteo Darmian and Chris Smalling clocked up a total of 22,214 miles but have made two Premier League starts between them this season.
And crucially, four of United's potential starters at Anfield have all been enjoying a few days off this week after not being selected by their national teams.
Anthony Martial, Juan Mata, Ander Herrera and Ashley Young have all stayed at home and they were joined by Phil Jones who returned from England camp to recover from a knock that he has overcome after two weeks' rest.
But the international break has created an added problem for Mourinho, with Belgian Marouane Fellaini suffering knee ligament damage against Bosnia-Herzegovina.
Belgium manager Roberto Martinez also risked the wrath of Mourinho by bringing on Romelu Lukaku in the 4-0 win over Cyprus on Tuesday night, but the striker suffered no recurrence of an ankle injury picked up against Crystal Palace.
Captain Antonio Valencia clocked up 15,300 miles, more than any Liverpool player, and he is a key player who will be fighting jet lag like Firmino and Coutinho on return to training. The Ecuador international played 90 minutes in the 2-1 defeat by Chile but was suspended for the 3-1 loss against Argentina, although he did travel to Quito meaning fatigue will still be an issue.
Romero fared better as Argentina booked their spot at Russia 2018, but he is set to be among the substitutes on Saturday, regardless of the 15,341 miles he travelled - accounting for 22 percent of the club's total distance travelled during international week.
United No 1 David De Gea enjoyed a successful break as Spain booked their place at the World Cup next summer, and he played 180 minutes across his country's two games, clocking up 5,490 miles across wins against Albania and in Israel.
Defensive team-mate Eric Bailly travelled 5,686 miles for the Ivory Coast's 0-0 draw in Mali while Henrikh Mkhitaryan travelled the third-furthest at 6,820 miles for games against Poland and Kazakhstan. Both are in line for starting berths this weekend as Mourinho's men look to go the distance at the home of their fierce rivals.
After the last international break in September, 10-man Liverpool capitulated in the 5-0 defeat by Manchester City, while United were far from their fluent best in the 2-2 draw at Stoke.
Liverpool vs Manchester United: Individual and team distances travelled
|Man Utd||Sergio Romero||Argentina||15340.93|
|Man Utd||Antonio Valencia||Ecuador||15299.73|
|Man Utd||Henrikh Mkhitaryan||Armenia||6819.58|
|Man Utd||Eric Bailly||Ivory Coast||5686.2|
|Man Utd||David de Gea||Spain||5489.92|
|Liverpool||Marko Grujic||Serbia U21||2775.98|
|Man Utd||Matteo Darmian||Italy||2637.11|
|Man Utd||Daley Blind||Netherlands||2590.04|
|Man Utd||Chris Smalling||England||2391.13|
|Man Utd||Jesse Lingard||England||2391.13|
|Man Utd||Marcus Rashford||England||2391.13|
|Man Utd||Nemanja Matic||Serbia||2381.03|
|Man Utd||Romelu Lukaku||Belgium||2297.93|
|Man Utd||Victor Lindelof||Sweden||1886.21|
|Liverpool||Joe Gomez||England U21||1733.96|
|Liverpool||Trent Alexander-Arnold||England U21||1733.96|
|Liverpool||Dominic Solanke||England U21||1733.96|
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