San Francisco 49ers' Trent Taylor, left, fumbles a punt that was recovered by Dallas Cowboys' Xavier Woods (25) during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

Dallas Cowboys running back Ezekiel Elliott (21) is congratulated by teammates after scoring a touchdown against the San Francisco 49ers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys running back Ezekiel Elliott (21) celebrates with quarterback Dak Prescott (4) after scoring a touchdown against the San Francisco 49ers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys running back Ezekiel Elliott (21) runs toward the end zone to score a touchdown against San Francisco 49ers cornerback Jimmie Ward (25) during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys quarterback Dak Prescott (4) passes against the San Francisco 49ers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys tight end Jason Witten (82) and quarterback Dak Prescott (4) celebrate after connecting on a touchdown pass against the San Francisco 49ers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Eric Risberg)

San Francisco 49ers quarterback C.J. Beathard (3) passes against the Dallas Cowboys during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

Dallas Cowboys tight end Jason Witten, left, catches a touchdown against San Francisco 49ers strong safety Jaquiski Tartt during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys quarterback Dak Prescott (4) passes against the San Francisco 49ers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers running back Carlos Hyde (28) runs against Dallas Cowboys defensive back Orlando Scandrick (32) during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

Dallas Cowboys wide receiver Dez Bryant (88) runs against San Francisco 49ers cornerback Will Redmond (23) during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

Dallas Cowboys head coach Jason Garrett watches action during the first half of an NFL football game against the San Francisco 49ers in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys quarterback Dak Prescott (4) and tight end Jason Witten (82) celebrate after connecting for a touchdown pass against the San Francisco 49ers during the first half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

Dallas Cowboys running back Ezekiel Elliott, right, runs for a touchdown against San Francisco 49ers cornerback Dontae Johnson (36) during the second half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

Dallas Cowboys running back Ezekiel Elliott, right, celebrates on the sideline with wide receiver Dez Bryant after scoring a touchdown during the second half of an NFL football game against the San Francisco 49ers in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Eric Risberg)

Pro football hall of famer Joe Montana speaks about former teammate Dwight Clark during halftime of an NFL football game between the San Francisco 49ers and the Dallas Cowboys in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Eric Risberg)

Dallas Cowboys wide receiver Dez Bryant (88) celebrates after catching a touchdown against the San Francisco 49ers during the second half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

Dallas Cowboys wide receiver Dez Bryant (88) catches a touchdown against the San Francisco 49ers during the second half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

Dallas Cowboys running back Alfred Morris (46) runs against San Francisco 49ers defensive back Adrian Colbert (38) during the second half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers quarterback C.J. Beathard (3) fumbles the ball as he is hit by Dallas Cowboys outside linebacker Jaylon Smith (54) during the second half of an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. The Cowboys recovered the fumble. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers quarterback C.J. Beathard (3) stands on the sideline during the second half of an NFL football game against the Dallas Cowboys in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers running back Carlos Hyde (28) hugs Dallas Cowboys running back Ezekiel Elliott after the Cowboys beat the 49ers in an NFL football game in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)

San Francisco 49ers head coach Kyle Shanahan walks on the sideline during the second half of an NFL football game against the Dallas Cowboys in Santa Clara, Calif., Sunday, Oct. 22, 2017. (AP Photo/Marcio Jose Sanchez)