Benfica appointed Bruno Lage as its new manager after impressing in his interim role, the club having failed to land Jose Mourinho.
Bas Dost has returned to Sporting CP and signed a three-year contract just five weeks after rescinding his previous deal as a result of being attacked by fans in May.
Portugal winger Nani has re-joined Sporting CP on a permanent basis more than a decade after originally departing for Manchester United.
Sinisa Mihajlovic has agreed to become the new manager of troubled Sporting Lisbon after signing a three-year-deal.
Sporting CP has condemned the reported perpetrators of "vandalism and aggression" that allegedly took place at the club's training ground on Wednesday (AEST).