Training camp preview: QB photos
View photos of the quarterbacks competing for roster spots entering training camp.

Detroit Lions quarterback Matthew Stafford (9) during an OTA practice at the Detroit Lions training facility on Monday, May 21, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Jake Rudock (14) during an OTA practice at the Detroit Lions training facility on Thursday, May 24, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matt Cassel (8) during an OTA practice at the Detroit Lions training facility on Tuesday, May 22, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matthew Stafford (9) stretches during voluntary minicamp practice at the Detroit Lions training facility on Tuesday, April 24, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Jake Rudock (14) during an OTA practice at the Detroit Lions training facility on Monday, May 21, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matt Cassel (8) during a minicamp practice at the Detroit Lions training facility on Thursday, June 7, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matthew Stafford (9) during an OTA practice at the Detroit Lions training facility on Monday, June 11, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Jake Rudock (14) during an OTA practice at the Detroit Lions training facility on Monday, June 11, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matt Cassel (8) during an OTA practice at the Detroit Lions training facility on Tuesday, May 22, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Jake Rudock during voluntary offseason workouts at the Detroit Lions training facility on Thursday, May 17, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matthew Stafford (9) during voluntary minicamp practice at the Detroit Lions training facility on Thursday, April 26, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Jake Rudock (14) smiles during an OTA practice at the Detroit Lions training facility on Thursday, May 24, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matthew Stafford (9) during an OTA practice at the Detroit Lions training facility on Thursday, May 31, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matt Cassel (8) during voluntary minicamp practice at the Detroit Lions training facility on Thursday, April 26, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matthew Stafford (9) smiles during an OTA practice at the Detroit Lions training facility on Monday, May 21, 2018 in Allen Park, Mich. (Detroit Lions via AP)


Detroit Lions quarterback Matthew Stafford (9) during an OTA practice at the Detroit Lions training facility on Thursday, May 24, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matt Cassel (8) during an OTA practice at the Detroit Lions training facility on Monday, May 21, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Jake Rudock (14) during voluntary minicamp practice at the Detroit Lions training facility on Tuesday, April 24, 2018 in Allen Park, Mich. (Detroit Lions via AP)

Detroit Lions quarterback Matthew Stafford (9) during a minicamp practice at the Detroit Lions training facility on Tuesday, June 5, 2018 in Allen Park, Mich. (Detroit Lions via AP)