4th place only becomes a Europa league spot if Chelsea win the champions league AND Man utd with the europa league. Both of them have to win the European competitions they're in. If 1 of them fails to win their competition, 4th place is still a champions league spot as England is allowed a maximum of 5 entries into the champions league.
"Fans leaving the ground are wondering what they've just witnessed"
I mean it was a canny game I agree Sky, but ffs stop trying to make everything so dramatic.