Life is moving in fast-forward for rookie quarterback Riley Leonard since he grabbed his helmet and ran onto the field to replace injured Indianapolis Colts starter Daniel Jones in Jacksonville last Sunday.

After Daniel Jones' injury, the course of the Colts' season might now be determined by a sixth-round rookie QB. But who is Riley Leonard?

And you thought it couldn't get worse, Colts fans. Quarterback Riley Leonard has a knee injury, status for Sunday is unknown

The most likely out of these three is that the Colts trust Jones' rehab enough to retain him on a short-term deal. Initially, it was believed the Colts were preparing to give Jones a long-term deal, given how well he was playing and fitting with Shane Steichen's offense. Obviously, that is now a murky subject.

1:51 — Riley Leonard scrambles up the middle and picks up his first career NFL rushing touchdown. The Colts opt to go for the two-point conversion, but Leonard's pass to Tyler Warren falls incomplete. 2:00 — After the two-minute warning, Riley Leonard looks for Tyler Warren, but the pass falls incomplete.

Preview the Week 15 matchup between the Seattle Seahawks and Indianapolis Colts with predictions, odds, over/under, spread, betting lines and more.

The Indianapolis Colts' quarterback situation has turned into an absolute disaster since yesterday, when they lost to the Jacksonville Jaguars, 36-19.