Warner was the backup quarterback for the St. Louis Rams during the 1998 regular season and the 1999 preseason. When starting quarterback Trent Green was injured in a preseason game, Warner took over as the starter. With the support of running back Marshall Faulk and wide receivers Isaac Bruce, Torry Holt, Az-Zahir Hakim and Ricky Proehl, Warner completed one of the top seasons by a quarterback in NFL history by throwing for 4,353 yards with 41 touchdown passes and a completion rate of 65.1 percent. The Rams' high-powered offense was nicknamed "The Greatest Show on Turf" and registered the first in a string of three consecutive 500-point seasons, an NFL record. Warner threw three touchdown passes in each of the first three games in the 1999 season, his first three NFL starts. He is the only NFL quarterback in history to accomplish that feat, and only the second other than Dan Marino to do it in his first two NFL starts.