Bebe joined Manchester United in 2010 for a fee of around £7m with former United manager Sir Alex Ferguson admitting that he had never actually seen the Portuguese winger play.
The 26-year-old has spent the past two seasons on loan at Cordoba and Rayo Vallecano where he has shown glimpses of his potential ability.
However, both of Bebe's previous clubs have been relegated from La Liga and Eibar will be hoping that it is not third time (un)lucky for the former United man!