The development of Benfica's wing defense system is a key aspect of their strategy and tactics, as it ensures that they can defend themselves from strong opponents on the pitch. João Mário has been instrumental in this development, having played a significant role throughout his career at the club.

Mário was born in Portugal and moved to Brazil when he was just seven years old. He started playing football for Santos, a team known for its wing defense system, which included a goalkeeper called Antônio de Lima. However, Mário's career was cut short by a serious injury during his time with Santos, and he had to leave the club early.

After returning to Brazil, Mário joined Flamengo, where he continued to develop his skills and became one of the most talented defenders in Brazilian football. He quickly established himself as one of the best wing defenders in the country, and his performances earned him a call-up to the national team.

In 2015, Mário made his debut for the national team, and went on to become a key player for Flamengo. He played a crucial role in helping the team win the Campeonato Brasileiro Série A in 2017, and he also helped them reach the Copa do Brasil final in 2018.

In addition to his technical abilities, Mário is also known for his tactical understanding and ability to read the game. He has worked closely with coaches such as Rui Costa and Jose Mourinho, and he has developed his own style of play that is different from what is commonly seen in the club's traditional wing defense system.

Overall, João Mário's contributions to Benfica's wing defense system have been invaluable, and his work has helped the club to achieve success both on and off the pitch. His dedication and passion for the sport have inspired many other players at the club, and he will continue to be an important figure in their future.