This article was originally published on www.si.com/nfl/seahawks/onsi as Why Colts matchup is a must-win game for the Seahawks. The Seattle Seahawks face a massive game in Week 15 as they host Jonathan Taylor and the Indianapolis Colts.

USA Today's NFL experts make their picks for a Week 15 showdown between the Seattle Seahawks and Indianapolis Colts

Indianapolis faces one of the best teams in the NFL at Lumen Field, one of the league's toughest places to play.

Phillip Rivers was already on the practice field on Wednesday for the Indianapolis Colts. Two days after reports began swirling that the Colts were bringing in Rivers for a workout, he is now signed to the Indianapolis practice squad, and head coach Shane Steichen didn't rule out the possibility of him starting against Seattle.

Sam Darnold pointed out the area of emphasis the Seahawks must execute at a high level going into their Week 15 game against the Colts.

The Seahawks enter the weekend with some roster decisions to make, none of which coach Mike Macdonald wanted to reveal Friday.

Michael Pittman Jr. accidentally collided with a security guard during the Colts' game against the Jaguars, and he found out a promising update after the game.

The Colts hope to rebound from a three-game losing streak but Sauce Gardner has yet to return to practice after straining his calf.