Detroit Lions injury: Glover Quin leaves Saints game with concussion

Glover Quin, one of the Detroit Lions' best players in the secondary, left Monday's game against the Saints late in the second quarter after making a tackle on Tim Hightower. Quin tried to get up from the tackle but struggled to get to his feet. Later in the second half, the Lions confirmed the suspicions: Quin suffered a concussion and did not return to the game.

Quin has been known for his durability throughout his career. In fact, Monday's game marked Quin's 98th-consecutive start in the NFL. An ankle injury earlier in the year tested Quin's resolve, but he recovered quickly enough to play on a short week against the Packers.

However, Quin will have to recuperate quickly again, as Detroit will face off against the San Francisco 49ers less than six days after Quin suffered the concussion. After Monday's game, Jim Caldwell did not give any details on the severity of Quin's injury.

One thing we know is the Lions defense is much worse without Quin. Prior to Quin's injury, Drew Brees was just 12-20 for 82 yards and 0 touchdowns. After Quin left, Brees was 22-32 for 259 yards and 3 touchdowns. While it's unfair to attribute that stark difference solely on Quin's absence, it was easy to see the secondary's confusion without him on the field.