SANTA CLARA -- Scott Tolzien, who served as the team's third-string quarterback the past two seasons, did not make it through the first round of cuts.
Tolzien was one of five players the 49ers waived on Monday with a looming deadline of Tuesday (1 p.m.) to pare the roster from 90 players to 75.
The 49ers also released offensive lineman Al Netter, running back D.J. Harper, punter Colton Schmidt and inside linebacker Joe Holland.
The 49ers' decision to release Tolzien trims the 49ers' quarterback stable to four players. Colin Kaepernick is the 49ers' starter, and coach Jim Harbaugh announced Colt McCoy as the team's backup on Sunday night. Rookie B.J. Daniels has been impressive in the past two exhibition games, and stands a strong chance as the team's No. 3. The 49ers also have veteran Seneca Wallace, a free agent pickup last week, on the roster.
While serving as the No. 3 quarterback, Tolzien did not play in a regular-season game in his two-year 49ers career.
Tolzien was the only one of the 49ers' five quarterbacks who did not play Sunday night in the 49ers' 34-14 victory over the Minnesota Vikings. He missed practice time after the second exhibition game due to an undisclosed minor injury, coach Jim Harbaugh said last week.
The 49ers originally claimed Tolzien off waivers from the San Diego Chargers at the end of the exhibition season in 2011 after he played well against the 49ers. That summer with the Chargers, Tolzien completed 25 of 40 passes (62.5 percent) in the preseason for 302 yards with one touchdown and one interception for a passer rating of 83.5.
Tolzien struggled last summer but still beat out Josh Johnson for the No. 3 job behind Alex Smith and Kaepernick. Tolzien completed 18 of 34 (52.9 percent) for 165 yards with no touchdowns and two interceptions.
In the first two exhibition games, Tolzien was again 18 for 34 for 188 yards with no touchdowns and one interception.
The 49ers must trim 10 more roster spots to get to the 75-player limit on Tuesday.