EAST RUTHERFORD, N.J. – The Giants today announced a change at quarterback, though the news concerns only the No. 3 position on the depth chart.
Free agent Brian Lewerke was added to the roster and Clayton Thorson (concussion) was waived/injured. Thorson was injured on the Giants' final offensive play in their 12-7 preseason-opening loss to the Jets Saturday night. He was sacked in the end zone for a safety by Jonathan Marshall and Hamilcar Rashed with just 1:39 remaining. Thorson was quickly attended to by the team's medical staff before being helped off the field.
Thorson spent most of the 2020 season on the Giants' practice squad.
Lewerke, 6-3 and 216 pounds, was twice with the New England Patriots in the spring and summer in 2020, when he was released for a second time at the end of training camp on Sept. 5.
In four seasons at Michigan State, he played in 41 games and completed 421 of 1,249 passes (57.7%) for 8,293 yards, 47 touchdowns and 32 interceptions. He also rushed for 1,697 yards and 10 scores on 346 carries. Lewerke also caught four passes, including one for a touchdown.
View photos of new Giants quarterback Brian Lewerke.

New England Patriots quarterback Brian Lewerke passes during an NFL football training camp practice, Monday, Aug. 24, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)


New England Patriots quarterback Brian Lewerke catches the ball during an NFL football training camp practice, Tuesday, Aug. 18, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke follows through on a pass during an NFL football training camp practice, Monday, Aug. 24, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke throws the ball in a drill during an NFL football practice, Monday, Aug. 31, 2020, in Foxborough, Mass. (AP Photo/Steven Senne)

New England Patriots quarterback Brian Lewerke, center, throws a pass as offensive coordinator Josh McDaniels, right, walks past during an NFL football training camp practice, Sunday, Aug. 30, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterbacks Brian Lewerke (68) and Brian Hoyer (2) warm up during an NFL football training camp practice, Thursday, Aug. 27, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke throws the ball during an NFL football training camp practice, Monday, Aug. 24, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke (68) passes as quarterback Jarrett Stidham (4) watches during an NFL football training camp practice, Monday, Aug. 24, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke steps on the field at the start of an NFL football training camp practice, Wednesday, Aug. 26, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke, left, hands off to running back Rex Burkhead, right, during an NFL football training camp practice, Tuesday, Aug. 25, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots offensive lineman Ben Braden (65) and quarterback Brian Lewerke (68) step on the field before the start of an NFL football training camp practice, Sunday, Aug. 23, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke throws the ball during an NFL football training camp practice, Sunday, Aug. 23, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke steps on the field at the start of an NFL football training camp practice, Wednesday, Aug. 19, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke walks to the field for an NFL football training camp practice, Friday, Aug. 21, 2020, in Foxborough, Mass. (AP Photo/Michael Dwyer, Pool)

New England Patriots quarterback Brian Lewerke walks to the field for an NFL football training camp practice, Friday, Aug. 21, 2020, in Foxborough, Mass. (AP Photo/Michael Dwyer, Pool)

New England Patriots quarterback Brian Lewerke walks to the field for an NFL football training camp practice, Monday, Aug. 17, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke passes the ball during an NFL football training camp practice, Thursday, Aug. 20, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke throws the ball during an NFL football training camp practice, Wednesday, Aug. 19, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

New England Patriots quarterback Brian Lewerke passes the ball during an NFL football training camp practice, Thursday, Aug. 20, 2020, in Foxborough, Mass. (AP Photo/Steven Senne, Pool)

Michigan State quarterback Brian Lewerke runs the 40 yard dash during the NFL football scouting combine, Thursday, Feb. 27, 2020, in Indianapolis. (Aaron M. Sprecher via AP)

Michigan St. quarterback Brian Lewerke throws a pass during the 2020 NFL Scouting Combine, Thursday, Feb. 27, 2020 in Indianapolis. (Ben Liebenberg via AP)

Michigan St. quarterback Brian Lewerke runs the 40-yard dash during the 2020 NFL Scouting Combine, Thursday, Feb. 27, 2020 in Indianapolis. (Ben Liebenberg via AP)

Michigan St. quarterback Brian Lewerke throws a pass during the 2020 NFL Scouting Combine, Thursday, Feb. 27, 2020 in Indianapolis. (Ben Liebenberg via AP)

Michigan State quarterback Brian Lewerke runs the 40 yard dash during the NFL football scouting combine, Thursday, Feb. 27, 2020, in Indianapolis. (Aaron M. Sprecher via AP)

Michigan State quarterback Brian Lewerke runs a drill at the NFL football scouting combine in Indianapolis, Thursday, Feb. 27, 2020. (AP Photo/Michael Conroy)

Michigan State quarterback Brian Lewerke throws the ball during the NFL football scouting combine, Thursday, Feb. 27, 2020, in Indianapolis. (Aaron M. Sprecher via AP)

Michigan State quarterback Brian Lewerke runs a drill at the NFL football scouting combine in Indianapolis, Thursday, Feb. 27, 2020. (AP Photo/Michael Conroy)

Michigan State quarterback Brian Lewerke throws the ball during the NFL football scouting combine, Thursday, Feb. 27, 2020, in Indianapolis. (Aaron M. Sprecher via AP)

Michigan State quarterback Brian Lewerke runs a drill at the NFL football scouting combine in Indianapolis, Thursday, Feb. 27, 2020. (AP Photo/Michael Conroy)

Michigan State quarterback Brian Lewerke throws the ball during the NFL football scouting combine, Thursday, Feb. 27, 2020, in Indianapolis. (Aaron M. Sprecher via AP)

Michigan State quarterback Brian Lewerke throws the ball during the NFL football scouting combine, Thursday, Feb. 27, 2020, in Indianapolis. (Aaron M. Sprecher via AP)

Michigan State quarterback Brian Lewerke (14) during the first half of an NCAA college football game against Wisconsin Saturday, Oct. 12, 2019, in Madison, Wis. (AP Photo/Andy Manis)

Michigan State quarterback Brian Lewerke throws a pass against Maryland during the first half of an NCAA college football game, Saturday, Nov. 30, 2019, in East Lansing, Mich. Michigan State won 19-16. (AP Photo/Al Goldis)

Michigan State quarterback Brian Lewerke throws before an NCAA college football game against Michigan in Ann Arbor, Mich., Saturday, Nov. 16, 2019. (AP Photo/Paul Sancya)

Michigan State quarterback Brian Lewerke (14) throws a pass during the first half of the Pinstripe Bowl NCAA college football game against Wake Forest Friday, Dec. 27, 2019, in New York. (AP Photo/Frank Franklin II)

Michigan State quarterback Brian Lewerke scrambles during the second half of an NCAA college football game, Saturday, Nov. 9, 2019, in East Lansing, Mich. (AP Photo/Carlos Osorio)

Michigan State quarterback Brian Lewerke (14) throws a pass in the first quarter of an NCAA college football game against Michigan in Ann Arbor, Mich., Saturday, Nov. 16, 2019. (AP Photo/Tony Ding)

Michigan State quarterback Brian Lewerke throws against Michigan in the first half of an NCAA college football game in Ann Arbor, Mich., Saturday, Nov. 16, 2019. (AP Photo/Paul Sancya)

Michigan State quarterback Brian Lewerke looks to throw against Maryland during the first half of an NCAA college football game, Saturday, Nov. 30, 2019, in East Lansing, Mich. (AP Photo/Al Goldis)

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