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Union SG vs Marseille — Champions League Prediction 9 December 2025

Union SG
Union SG
Champions League
1
VS
2
schedule 09 Dec, 20:00 · Referee: João Pinheiro (Portugal)
Predicted Score

Last update of insights: 22 Jul 2026

Marseille
Marseille
Final result
2 – 3
CoachAI prediction
1 – 2
✓ Outcome correct
Kickoff in —

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Coach AI predicts a score of 1-2 for Union SG vs Marseille in the Champions League. Marseille is the favourite with a 40% win probability. Union SG has a 30% chance of winning and 30% ends in a draw. See the full analysis, injuries and score matrix below.

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Union SG vs Marseille

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Match Scenario's

Three most likely match scenarios

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Current Standings

Position in the competition

League phase

Pos Team Pld W D L GD Pts
1 Arsenal FC 8 8 0 0 +19 24
2 FC Bayern München 8 7 0 1 +14 21
3 Liverpool FC 8 6 0 2 +12 18
4 Tottenham Hotspur FC 8 5 2 1 +10 17
5 FC Barcelona 8 5 1 2 +8 16
6 Chelsea FC 8 5 1 2 +7 16
7 Sporting Clube de Portugal 8 5 1 2 +6 16
8 Manchester City FC 8 5 1 2 +6 16
9 Real Madrid CF 8 5 0 3 +9 15
10 FC Internazionale Milano 8 5 0 3 +8 15
11 Paris Saint-Germain FC 8 4 2 2 +10 14
12 Newcastle United FC 8 4 2 2 +10 14
13 Juventus FC 8 3 4 1 +4 13
14 Club Atlético de Madrid 8 4 1 3 +2 13
15 Atalanta BC 8 4 1 3 0 13
16 Bayer 04 Leverkusen 8 3 3 2 -1 12
17 Borussia Dortmund 8 3 2 3 +2 11
18 PAE Olympiakos SFP 8 3 2 3 -4 11
19 Club Brugge KV 8 3 1 4 -2 10
20 Galatasaray SK 8 3 1 4 -2 10
21 AS Monaco FC 8 2 4 2 -6 10
22 Qarabağ Ağdam FK 8 3 1 4 -8 10
23 FK Bodø/Glimt 8 2 3 3 -1 9
24 Sport Lisboa e Benfica 8 3 0 5 -2 9
25 Olympique de Marseille 8 3 0 5 -3 9
26 Paphos FC 8 2 3 3 -3 9
27 Royale Union Saint-Gilloise 8 3 0 5 -9 9
28 PSV 8 2 2 4 0 8
29 Athletic Club 8 2 2 4 -5 8
30 SSC Napoli 8 2 2 4 -6 8
31 FC København 8 2 2 4 -9 8
32 AFC Ajax 8 2 0 6 -13 6
33 Eintracht Frankfurt 8 1 1 6 -11 4
34 SK Slavia Praha 8 0 3 5 -14 3
35 Villarreal CF 8 0 1 7 -13 1
36 FK Kairat 8 0 1 7 -15 1
Union SG
Marseille
percent

Coach AI Odds

Union SG
30% · 30% · 40%
Marseille
W D L

Upset Chance

Medium

Risk of unexpected result

Union SG Recent Form — Last 5

Marseille Recent Form — Last 5

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Key Factors

sports_soccer 1

Olympique de Marseille's extensive injury list, particularly in key attacking and defensive positions.

trending_up 2

Royale Union Saint-Gilloise's contrasting home form, strong domestically but poor in the Champions League.

person 3

Olympique de Marseille's inconsistent away form, especially in European competitions, despite a generally strong overall Ligue 1 season.

bolt 4

The high stakes of this UEFA Champions League group stage match for both teams' qualification hopes.

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Injuries & Absentees

Royale Union Saint-Gilloise is currently impacted by the absence of Mohammed Fuseini due to an ankle injury. Fedde Leysen is also sidelined with an ankle injury until late December 2025. Olympique de Marseille faces a more significant injury crisis, with several key players out. Amine Gouiri is a long-term absentee with a shoulder injury, expected back in late January 2026. Facundo Medina is recovering from a sprained ankle, with a potential return in late December 2025. Hamed Traorè is out with a thigh injury. Midfielder Matt O'Riley is sidelined with a lower-leg contusion. Pierre-Emile Højbjerg is a major doubt due to fever and a muscle injury, having missed their last Ligue 1 game. Additionally, central defender Nayef Aguerd has been struggling with pubalgia, raising concerns about his full fitness despite playing through pain recently.

The analyses and predictions on this page are generated by artificial intelligence and are intended for informational and entertainment purposes only. This is not gambling advice.

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Frequently Asked Questions about this prediction

What is the Coach AI prediction for Union SG vs Marseille?

Coach AI predicts a score of 1-2 with a win probability of 30% for Union SG, 30% draw and 40% for Marseille.

What is the recent form of Union SG and Marseille?

Union SG form (last 5): no data. Marseille form (last 5): no data.

What are the injury and suspension updates for Union SG vs Marseille?

Royale Union Saint-Gilloise is currently impacted by the absence of Mohammed Fuseini due to an ankle injury. Fedde Leysen is also sidelined with an ankle injury until late December 2025. Olympique de Marseille faces a more significant injury crisis, with several key players out. Amine Gouiri is a long-term absentee with a shoulder injury, expected back in late January 2026. Facundo Medina is recovering from a sprained ankle, with a potential return in late December 2025. Hamed Traorè is out with a thigh injury. Midfielder Matt O'Riley is sidelined with a lower-leg contusion. Pierre-Emile Højbjerg is a major doubt due to fever and a muscle injury, having missed their last Ligue 1 game. Additionally, central defender Nayef Aguerd has been struggling with pubalgia, raising concerns about his full fitness despite playing through pain recently.

What are the current standings for Union SG and Marseille in the UEFA Champions League?

Union SG are 27th in the UEFA Champions League with 9 points from 8 games. Marseille are 25th with 9 points from 8 games.

What time does Union SG vs Marseille kick off?

Union SG vs Marseille kicks off on Tuesday, 9 December 2025 at 21:00 (Central European Time). The match is part of the Champions League.

Who is the referee for Union SG vs Marseille?

The referee for Union SG vs Marseille in the Champions League is João Pinheiro.

What are the key factors for Union SG vs Marseille?

Coach AI identifies three decisive factors for Union SG vs Marseille: 1. Olympique de Marseille's extensive injury list, particularly in key attacking and defensive positions. 2. Royale Union Saint-Gilloise's contrasting home form, strong domestically but poor in the Champions League. 3. Olympique de Marseille's inconsistent away form, especially in European competitions, despite a generally strong overall Ligue 1 season. 4. The high stakes of this UEFA Champions League group stage match for both teams' qualification hopes..

What are the Coach AI odds for Union SG vs Marseille?

Coach AI calculates the following outcome probabilities for Union SG vs Marseille: Union SG wins 30%, draw 30%, Marseille wins 40%. The most likely outcome is Marseille with 40%.

How does Coach AI predict this match?

Coach AI analyzes thousands of data points, including xG, recent form, team news, and tactical developments for every match.

How often are these football predictions updated?

Insights are updated daily to incorporate the latest developments, injuries, and market movements.

How accurate are the Coach AI predictions?

Coach AI has analyzed over 1,000 matches. In 50% of cases, the correct outcome (home win, draw, or away win) is predicted accurately. In more than 10% of matches, the exact final score matches the prediction — significantly above the market average.

What is Coach AI's track record?

Coach AI has predicted over 1,000 matches: 50% correct outcome, 10%+ exact final score. The model consistently outperforms standard probability calculations and gives football fans the data they need to make truly informed predictions.

What data does Coach AI use for its predictions?

Coach AI combines Expected Goals (xG), recent team form over the last five matches, head-to-head records, up-to-date injury news, and tactical match-up analysis. The model is updated daily so every prediction reflects the most current information available.