This is how i unlocked it after it not popping on several occasions...
GO RIGHT ON CONTROL OPTION --> READY
SO "LIVE FORM" IS ON. (if it off, click on, back out and go back in)
**The opposition must be the team your supported club are due to play next in real life**
CHANGE TO BEGINNER AND 4 MINS EACH WAY
WIN THE GAME, AND ON EXITING THE FINAL SCREEN IT SHOULD POP.
HOPEFULLY THIS HELPS.