Yesterday, the Lions had 4,500 tickets available for Sunday's game against the Rams. Today, that number is down to 2,500 tickets, which in turn allowed the Lions to receive a 24-hour extension to reach a sellout.
Extensions are usually only given out when a sellout is expected, so it looks like Sunday's game will not be blacked out. There are no guarantees, but the Lions have until 1 p.m. on Friday to sell the 2,500 remaining tickets.