Tickets for the round of 16 can cost anything from several hundred £/$ up to $1000/£800 depending on the matches and games. See below and check the event for live pricing on Seat Compare. There are some round fo 16 games that will be in extremely high demand, see below for the current list.
Ticket Update: Round 16 of the Football World Cup:
See below for tickets to all the round of 16 matches and be there at the stadium for what promises to be exciting matches across the board.