San Francisco 49ers quarterback Jimmy Garoppolo is sacked by Detroit Lions linebacker Eli Harold during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 16, 2018. (AP Photo/Tony Avelar)

Detroit Lions running back Theo Riddick runs with the ball as San Francisco 49ers defensive end DeForest Buckner (99) pursues during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 16, 2018. (AP Photo/Tony Avelar)

San Francisco 49ers running back Matt Breida (22) runs with the ball as Detroit Lions defensive back Nevin Lawson tries to stop him during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 16, 2018. At right is Detroit Lions linebacker Jarrad Davis (40). (AP Photo/Tony Avelar)

Detroit Lions wide receiver Kenny Golladay runs with the ball as San Francisco 49ers defensive back Adrian Colbert (27) looks on during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 16, 2018. (AP Photo/Ben Margot)

San Francisco 49ers head coach Kyle Shanahan challenges a play during the first half of an NFL football game against the Detroit Lions in Santa Clara, Calif., Sunday, Sept. 16, 2018. (AP Photo/Tony Avelar)

Detroit Lions quarterback Matthew Stafford (9) looks to throw as San Francisco 49ers defensive ends Arik Armstead (91) and DeForest Buckner (99) look on during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 16, 2018. (AP Photo/Ben Margot)

San Francisco 49ers tight end Garrett Celek, left, is greeted by quarterback Jimmy Garoppolo, center, after scoring a touchdown during the second half of an NFL football game against the Detroit Lions in Santa Clara, Calif., Sunday, Sept. 16, 2018. At right is San Francisco 49ers tight end George Kittle (85).(AP Photo/Ben Margot)

San Francisco 49ers wide receiver Kendrick Bourne celebrates with Trent Taylor (81) after scoring a touchdown during the first half of an NFL football game against the Detroit Lions in Santa Clara, Calif., Sunday, Sept. 16, 2018. (AP Photo/Tony Avelar)

Detroit Lions head coach Matt Patricia watches from the sidelines during the second half of an NFL football game against the San Francisco 49ers in Santa Clara, Calif., Sunday, Sept. 16, 2018. (AP Photo/Ben Margot)

Detroit Lions wide receiver Marvin Jones Jr. catches the ball for a touchdown as San Francisco 49ers cornerback Ahkello Witherspoon looks on during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 16, 2018. (AP Photo/Tony Avelar)

San Francisco 49ers quarterback Jimmy Garoppolo smiles while sitting on the bench during the second half of an NFL football game against the Detroit Lions in Santa Clara, Calif., Sunday, Sept. 16, 2018. (AP Photo/Tony Avelar)

San Francisco 49ers defensive end Cassius Marsh, left, celebrates with cornerback Ahkello Witherspoon (23) after recovering a Detroit Lions fumble during the first half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 16, 2018. (AP Photo/Ben Margot)

Detroit Lions tight end Michael Roberts scores a touchdown as San Francisco 49ers defensive back Adrian Colbert (27) looks on during the second half of an NFL football game in Santa Clara, Calif., Sunday, Sept. 16, 2018. In the background is San Francisco 49ers defensive back Jimmie Ward (20). (AP Photo/Tony Avelar)

San Francisco 49ers quarterback Jimmy Garoppolo walks off the field at the end of an NFL football game against the Detroit Lions in Santa Clara, Calif., Sunday, Sept. 16, 2018. San Francisco won the game 30-27. (AP Photo/Tony Avelar)