The option is there for them to use Wembley for the whole of the 2017-18 season as well. Good for them. Sucks for Chelsea, who will end up in Milton Keynes or something
Why would Spurs get to use Wembo and not Chelsea?
Got in there first? Dunno, but they seemingly are!
edit: Seems Chelsea have two options now, groundshare with West Ham at the Olympic Stadium, or Twickenham