What happened: Drew Lock is commanding the Seattle Seahawks' offense during their ongoing game against the Arizona Cardinals. Injured quarterback Sam Darnold is observing from the sideline as Seattle continues a drive toward the end zone.

Why it matters: Darnold is sidelined after suffering a hip injury that is expected to keep him out 4-6 weeks. Lock has stepped into the starting role to lead a Seattle team that entered the game with a 1-3 record.

What to watch: Seattle will attempt to convert their current drive into points to break the tie.