Alberto Undiano Mallenco

1. 1FC Salzburg6×
2. 2AS Roma5×
3. 3Real Madrid CF3×
4. 4AC Sparta Praha2×
5. 5SC Braga2×
6. 6Mfk Ružomberok2×
7. 7FK Kauno Žalgiris2×
8. 8KA Akureyri2×
9. 9Connah's Quay Nomads FC2×
10. 10Union Berlin2×

Least-Officiated Teams

Clubs in their current competition, ordered by how seldom this official has worked their matches.

Each number = matches officiated involving that club · 0× = never officiated them

1. 11. FC Slovácko1×
2. 21899 Hoffenheim1×
3. 3AS Saint-étienne1×
4. 4AS Saint-étienne Loire1×
5. 5Aek1×
6. 6Alanyaspor1×
7. 7Apóel FC1×
8. 8Apóllon Limassol FC1×
9. 9Aris Thessaloniki FC1×
10. 10Barry Town United FC1×

Frequently Works With

1. 1
   Daniel Cook
   Assistant Referee 2
   4×
2. 2
   Christopher Kavanagh
   AVAR
   3×
3. 3
   Pol van Boekel
   VAR
   3×
4. 4
   Valerio Marini
   AVAR
   3×
5. 5
   Tiago Bruno Lopes Martins
   AVAR
   2×
6. 6
   Lee Betts
   Assistant Referee 1
   2×
7. 7
   Simone Sozza
   Fourth Official
   2×
8. 8
   Erik Lambrechts
   Referee
   2×

Rarely Works With

Active officials in UEFA Europa Conference League they have shared fewest matches with.

1. 1
   Fran Jović
   Referee · 21 in league
   Never
2. 2
   Vencel Tóth
   Assistant Referee 1 · 18 in league
   Never
3. 3
   Daniel Schlager
   Fourth Official · 18 in league
   Never
4. 4
   Georgi Yordanov
   Observer · 17 in league
   Never
5. 5
   José Luis Munuera Montero
   VAR · 17 in league
   Never
6. 6
   Morten Krogh
   Referee · 17 in league
   Never
7. 7
   Marcel Bîrsan
   Fourth Official · 17 in league
   Never
8. 8
   Jeroen Manschot
   VAR · 17 in league
   Never