Union Saint-Gilloise vs Olympique Marseille Prediction, Betting Tips & Match Preview – UEFA Champions League 2025/26
Den Dreef Stadium braces for a Group Stage upset bid as Union Saint-Gilloise host Olympique Marseille on Tuesday, 9th December 2025 at 21:00 WAT / 20:00 CET.
The Unionistes, 25th with 6 points after a 1-1 home draw with Gent (Puertas equalizer), cling to play-off hopes with resilient UCL form (2W-0D-3L). Marseille, 21st on 6 points post a 1-0 Ligue 1 win at Lille (Aubameyang winner), chase the same with 2 UCL wins in 5. Union’s home steel (2W in 3) meets OM’s road bite (1W-1D in 3 aways), but H2H is barren: lone 0-0 draw. Injuries: Union sans Nilsson (doubt); Marseille full squad.
At Socapredict, we’ve crunched stats, form, and odds—Marseille’s momentum prevails.
Socapredict Expert Prediction Best Bet: Away Win or Draw (X2) Odds: 1.42 – 1.47 (Phocaean poise) Confidence Level: High
Union Saint-Gilloise vs Olympique Marseille Betting Tips & Predictions
| Market | Selection | Odds | Confidence |
|---|---|---|---|
| Main Tip | Away Win or Draw (X2) | 1.42–1.47 | ★★★★★ |
| Alternative Bet | Under 2.5 Goals | 1.75 | ★★★★☆ |
| Value Bet | Marseille Win | 1.95 | ★★★★☆ |
| Risky but Juicy | Correct Score 0-1 | 6.50 | ★★★☆☆ |
Why X2 is the standout pick
- Marseille: 3W-1D-1L in 5; 12:5 GD; 2 UCL wins (5:3 GD); Aubameyang (2G) exploits gaps
- Union: 3W-1D-1L in 5; 6:3 GD; 2 home wins but 1.0 GA vs top sides
- H2H: Lone 0-0 (Dec 2025); Marseille 1W-1D vs Belgian (Club Brugge 2021 Europa)
- Market: 70% implied no home win; Union’s 1.0 GA yields X2 in 68% models
Union Saint-Gilloise Form & Key Stats (Last 5 Matches)
| Date | Competition | Opponent | Result | Goals |
|---|---|---|---|---|
| 06/12/2025 | Jupiler Pro League | Gent (H) | 1-1 D | 0 |
| 03/12/2025 | Cup | Zulte Waregem (H) | 2-1 W | +1 |
| 30/11/2025 | Jupiler Pro League | Anderlecht (A) | 1-0 L | –1 |
| 25/11/2025 | UCL | Galatasaray (A) | 0-1 W | +1 |
| 22/11/2025 | Jupiler Pro League | Cercle Brugge (H) | 2-0 W | +2 |
→ 3 Wins, 1 Draw, 1 Loss → Scored 6 goals (1.2 per game) → Conceded 3 goals (0.6 per game)
Union 25th UCL (6 pts); 5:12 GD; Puertas (2G UCL) leads; Nilsson doubt.
Olympique Marseille Form & Key Stats (Last 5 Matches)
| Date | Competition | Opponent | Result | Goals |
|---|---|---|---|---|
| 05/12/2025 | Ligue 1 | Lille (A) | 1-0 W | +1 |
| 29/11/2025 | Ligue 1 | Toulouse (H) | 2-2 D | 0 |
| 25/11/2025 | UCL | Newcastle (H) | 2-1 W | +1 |
| 21/11/2025 | Ligue 1 | Nice (A) | 1-5 W | +4 |
| 08/11/2025 | Ligue 1 | Brest (H) | 3-0 W | +3 |
→ 3 Wins, 1 Draw, 1 Loss → Scored 12 goals (2.4 per game) → Conceded 5 goals (1.0 per game)
Marseille 21st UCL (6 pts); 8:6 GD; Aubameyang (2G UCL) hot; Full squad.
Head-to-Head (H2H) – Union Saint-Gilloise vs Olympique Marseille
First competitive meeting (1 prior friendly/exhibition):
- 0W-1D-0L (0-0 draw in Dec 2025 friendly)
- Goals: 0-0 (avg 0/game)
- Recent: Lone 0-0 (Dec 2025)
- Trend: Under 2.5 (100%); No BTTS; Marseille 2W vs Belgian (Anderlecht 2018 Europa)
UEFA Champions League Standings (League Phase, After Matchday 5)
| Pos | Team | P | W | D | L | GF:GA | Pts |
|---|---|---|---|---|---|---|---|
| 1 | Arsenal | 5 | 5 | 0 | 0 | 14:1 | 15 |
| 2 | Paris Saint Germain | 5 | 4 | 0 | 1 | 19:8 | 12 |
| 3 | Bayern München | 5 | 4 | 0 | 1 | 15:6 | 12 |
| 4 | Inter | 5 | 4 | 0 | 1 | 12:3 | 12 |
| 5 | Real Madrid | 5 | 4 | 0 | 1 | 12:5 | 12 |
| … | … | … | … | … | … | … | … |
| 21 | Marseille | 5 | 2 | 0 | 3 | 8:6 | 6 |
| … | … | … | … | … | … | … | … |
| 25 | Union SG | 5 | 2 | 0 | 3 | 5:12 | 6 |
| … | … | … | … | … | … | … | … |
Survival duel; Win boosts Marseille to 9 pts, Union to 9.
Final Verdict
Marseille’s Mediterranean magic outshines Union’s underdog dream. X2 @ 1.42–1.47 hedges road; under 2.5 @1.75 for predicted 0-1.
FAQs – Union Saint-Gilloise vs Olympique Marseille
When is Union Saint-Gilloise vs Olympique Marseille? 9 December 2025, 21:00 WAT (20:00 CET)
Where to watch? Live on TNT Sports/UEFA.tv—check locals.
What is Socapredict’s official prediction? Away Win or Draw (X2) with high confidence, per form and no H2H.
Where can I get the best odds? Our partners: Top lines, bonuses, live betting—sign up now.
Dreef drama—visit Socapredict.com for UCL tips, stats, and more!