Just a curious story...
Sporting de Braga, founded in 1921, originally had green and white shirts, as a tribute to Sporting Lisbon, because the fans who founded them were Sporting Lisbon supporters.
In the 30´s, Josef Szabo, an hungarian coach who won numerous titles in Portugal, both with Sporting Lisbon and Porto, was the manager of Sporting Lisbon and wanted to take the club to a new level.
He was authorized to travel to London to learn training methods from british clubs. In 1935 he spent a few months with Arsenal and he was so impressed that when he returned he tried to apply what he had learn to Sporting Lisbon. The players complained the training sessions were too hard and he resigned a few months later after losing support from the board.
Sporting de Braga had just won the 3rd division and were promoted to the 2nd division for the first time. Szabo joined them and he won the 2nd division in his first season there. He applied what he had learned with Arsenal, he even changed the colours of the club from green and white to red and white, with the shirts having the same design as Arsenal shirts. From then on, they were nicknamed the Arsenalistas.
Braga grew from there. They went on to the first division, being regulars since the 40´s with a few relegations in between, but have been in the first division since 1975.
Since then they also had regular appearances in UEFA competitions, namely the UEFA Cup and the Cup Winner´s Cup.
The greatest achievment of their history was to qualify for the Champions League, and who better to face in their debut than the club who inspired the pioneers who started it all?