Colts quarterback Andrew Luck is retiring at the age of 29, according to ESPN’s Adam Schefter.

It’s a stunning story that hit social media in the third quarter of the Florida-Miami game on Week 0. Luck is set to announce his retirement Sunday, per the report.

Luck has been dealing with a leg injury throughout training camp and preseason, and he’s had enough and is mentally worn down.

This is obviously shocking news, as he’s looked at as one of the premier franchise quarterbacks in the NFL. Luck was the Colts No. 1 overall pick in the 2012 NFL Draft.

Luck has battled injuries during his short career, and now, it appears like he’s had enough. Luck made four Pro Bowls, but it’s a shame we never really saw Luck reach his full potential.

In seven career NFL seasons, Luck has thrown for 23,671 yards and 171 touchdowns. He missed the 2017 season due to a shoulder injury.