Middlesbrough has reported an incident involving a Southampton analyst who was allegedly caught spying on their training session at Rockliffe Park, just two days before their Championship playoff semi-final. A member of Middlesbrough's staff noticed the individual hiding in the bushes, reportedly recording video and taking photographs, particularly focusing on set pieces. This situation draws parallels to the infamous 2019 'spygate' scandal involving Marcelo Bielsa, where Leeds United faced repercussions for similar actions. The English Football League (EFL) has been informed of the incident, as spying on opposition training is against league regulations. Middlesbrough will host Southampton for the first leg of the semi-final on Saturday, with the second leg scheduled for Tuesday at St Mary's Stadium. Both Southampton and the EFL have been approached for comments regarding the matter.