Middlesbrough FC and Leeds United are both professional football clubs based in England. They have a long-standing rivalry as they have often competed against each other in various leagues and competitions.

Historically, both teams have had their fair share of success, with Leeds United being the more successful of the two, having won the English top-flight title three times. Middlesbrough, on the other hand, have had success in lower divisions and have also enjoyed some fruitful spells in the top flight.

Matches between Middlesbrough FC and Leeds United are often highly anticipated by fans of both clubs, as they are considered fierce rivals. The games are usually closely contested and have produced many memorable moments over the years.

Overall, the rivalry between Middlesbrough FC and Leeds United is a fiercely contested one, with both teams eager to come out on top whenever they face each other on the pitch.