Watchability: Real Madrid vs RB Leipzig

Let me analyze the data and write a match preview following the specified format and rules.

Key information from the data:
- Match: Real Madrid (Home) vs RB Leipzig (Away)
- Date: October 21, 2026
- Competition: UEFA Champions League
- Watchability Score: 66.0/100 (Recommended)
- Real Madrid league position: 3.0 (La Liga)
- RB Leipzig league position: 7.0 (Bundesliga)

Watchability Score Components:
- Historic Rivalry: 0.0/100
- Fierce Derby: 0.0/100
- Top Teams (Cup): 81.6/100
- World-Class Stars: 83.0/100
- In-Form Teams: 5.9/100
- Top League Players: 0.0/100
- Entertaining History (H2H): 50.0/100

Form data: "No data available" for both teams' last 5 results, season record, goals per game

H2H Summary: Last 4 meetings: 2W-1D-1L (Real Madrid perspective)
Recent H2H Results:
- Mar 06, 2024: Real Madrid 1-1 RB Leipzig (UCL)
- Feb 13, 2024: RB Leipzig 0-1 Real Madrid (UCL)
- Oct 25, 2022: RB Leipzig 3-2 Real Madrid (UCL)
- Sep 14, 2022: Real Madrid 2-0 RB Leipzig (UCL)

Player Data:
Real Madrid Top Scorers:
- Kylian Mbappé: 7G 2A in 8 apps
- J. Bellingham: 3G 2A in 8 apps
- Kylian Mbappé: 2G 0A in 2 apps (duplicate?)

Real Madrid Highest-Rated Players:
- Endrick: rating 8.2, 1G 0A
- Kylian Mbappé: rating 7.8, 7G 2A
- Kylian Mbappé: rating 7.8, 2G 0A

RB Leipzig Top Scorers:
- C. Nkunku: 4G 1A in 6 apps
- A. Nusa: 3G 3A in 6 apps
- T. Gomis: 2G 2A in 6 apps

RB Leipzig Highest-Rated Players:
- W. Orbán: rating 9.3, 1G 1A
- R. Baku: rating 8.7, 1G 0A
- B. Gruda: rating 8.5, 1G 0A

From source articles:
- Real Madrid's most recent Champions League match: 4-3 win away to Roma on Oct 14, 2026. Mbappé scored on 25', Carlos Espí on 83', E. Moreira de Sousa on 85', Antonio Rüdiger on 90'.
- Real Madrid's recent La Liga results from ESPN: W vs Villarreal (1-0), L vs Atlético Madrid (2-1), W vs Elche (3-2), W vs Rayo Vallecano (4-1), W vs Inter Milan (2-1) in UCL
- RB Leipzig's latest outing: 6-1 Bundesliga defeat at Bayern Munich on Oct 17, 2026. Andrija Maksimović scored at 90+1.
- RB Leipzig's recent results: W vs PSV (1-0) in UCL, W vs Eintracht Frankfurt (6-0) in Bundesliga, L vs Leverkusen (2-0), W vs Hamburg SV (5-0), L vs Como 1907 (4-1) in UCL

Wait, the form data says "No data available" but the articles show recent results. I should use the article data for recent form since it's provided in the sources.

Let me compile the recent form strings:
Real Madrid (from ESPN source): W vs Villarreal (1-0), L vs Atlético (2-1), W vs Elche (3-2), W vs Rayo (4-1), W vs Inter (2-1) - that's WWLWW or WLWWW depending on order. The ESPN source shows:
- 10/14 @ Roma W 4-3
- 10/10 vs Villarreal W 1-0
- 9/20 @ Atlético L 2-1
- 9/15 @ Elche W 3-2
- 9/12 vs Rayo W 4-1
- 9/8 vs Inter W 2-1

So last 5: W (Roma), W (Villarreal), L (Atlético), W (Elche), W (Rayo) = WWLWW

RB Leipzig (from Fox Sports source):
- 10/13 vs PSV W 1-0 (UCL)
- 10/10 vs Eintracht W 6-0 (Bundesliga)
- 9/20 @ Leverkusen L 2-0
- 9/13 vs Hamburg W 5-0
- 9/10 @ Como L 4-1 (UCL)

Last 5: W (PSV), W (Eintracht), L (Leverkusen), W (Hamburg), L (Como) = WWLWL

But wait, the most recent is the Bayern match on 10/17 which was a 6-1 loss. So the last 5 would be: L (Bayern), W (PSV), W (Eintracht), L (Leverkusen), W (Hamburg) = LWWLW

Actually, the OneFootball article says "RB Leipzig's latest outing ended in a 6-1 Bundesliga defeat at FC Bayern on Saturday 17 October 2026" and the Fox Sports source shows matches up to 10/13. So the Bayern match is the most recent.

Let me structure the form properly:
Real Madrid last 5: W vs Roma (4-3), W vs Villarreal (1-0), L vs Atlético (1-2), W vs Elche (3-2), W vs Rayo (4-1) = WWLWW
RB Leipzig last 5: L vs Bayern (1-6), W vs PSV (1-0), W vs Eintracht (6-0), L vs Leverkusen (0-2), W vs Hamburg (5-0) = LWWLW

Now for goals per game - I don't have exact season averages, but I can calculate from recent matches:
Real Madrid last