Defense carries Wisconsin to 27-7 triumph over No. 9 Iowa
Wisconsin quarterback Graham Mertz (5) and head coach Paul Chryst talk during the first half of an NCAA college football game against Iowa Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Wisconsin quarterback Graham Mertz (5) and head coach Paul Chryst talk during the first half of an NCAA college football game against Iowa Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Oct. 30, 2021 04:12 PM EDT
Wisconsin linebacker Nick Herbig (19) celebrates after forcing a fumble against Iowa that Wisconsin recovered during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Wisconsin linebacker Nick Herbig (19) celebrates after forcing a fumble against Iowa that Wisconsin recovered during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Oct. 30, 2021 02:06 PM EDT
Wisconsin linebacker Nick Herbig (19) forces a fumble against Iowa quarterback Spencer Petras (7) during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Wisconsin linebacker Nick Herbig (19) forces a fumble against Iowa quarterback Spencer Petras (7) during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Oct. 30, 2021 02:04 PM EDT
Wisconsin running back Chez Mellusi (6) runs against Iowa linebacker Seth Benson (44) during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Wisconsin running back Chez Mellusi (6) runs against Iowa linebacker Seth Benson (44) during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Oct. 30, 2021 02:05 PM EDT
Wisconsin's linebacker C.J. Goetz (98) and safety Collin Wilder (18) stop Iowa wide receiver Charlie Jones (16) during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Wisconsin's linebacker C.J. Goetz (98) and safety Collin Wilder (18) stop Iowa wide receiver Charlie Jones (16) during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Oct. 30, 2021 01:57 PM EDT
Wisconsin safety Collin Wilder (18) stops Iowa running back Tyler Goodson (15) during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Wisconsin safety Collin Wilder (18) stops Iowa running back Tyler Goodson (15) during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Oct. 30, 2021 02:01 PM EDT
Wisconsin running back Braelon Allen (0) runs against Iowa defensive back Dane Belton (4) during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Wisconsin running back Braelon Allen (0) runs against Iowa defensive back Dane Belton (4) during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Oct. 30, 2021 02:02 PM EDT
Wisconsin quarterback Graham Mertz (5) handles a snap during the first half of an NCAA college football game against Iowa, Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Wisconsin quarterback Graham Mertz (5) handles a snap during the first half of an NCAA college football game against Iowa, Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Oct. 30, 2021 04:13 PM EDT
Iowa quarterback Spencer Petras (7) looks to pass against Wisconsin during the second half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Iowa quarterback Spencer Petras (7) looks to pass against Wisconsin during the second half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Oct. 30, 2021 03:57 PM EDT
Wisconsin running back Braelon Allen (0) runs as Iowa's defensive back Dane Belton (4) and linebacker Jack Campbell (31) pursues during the second half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Wisconsin running back Braelon Allen (0) runs as Iowa's defensive back Dane Belton (4) and linebacker Jack Campbell (31) pursues during the second half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Oct. 30, 2021 03:58 PM EDT
Wisconsin linebacker Jack Sanborn (57) and defensive end Matt Henningsen (92) wrap up Iowa running back Tyler Goodson (15) during the second half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Wisconsin linebacker Jack Sanborn (57) and defensive end Matt Henningsen (92) wrap up Iowa running back Tyler Goodson (15) during the second half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Oct. 30, 2021 04:01 PM EDT
Wisconsin linebacker Mike Maskalunas (58) celebrates after Wisconsin recovered an Iowa fumble during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Wisconsin linebacker Mike Maskalunas (58) celebrates after Wisconsin recovered an Iowa fumble during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Oct. 30, 2021 02:08 PM EDT
Iowa defensive back Jermari Harris (27) pushes Wisconsin wide receiver Jack Dunn (16) out of bounds after a reception in the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Iowa defensive back Jermari Harris (27) pushes Wisconsin wide receiver Jack Dunn (16) out of bounds after a reception in the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. (AP Photo/Andy Manis)

Oct. 30, 2021 01:56 PM EDT
Bucky Badger, Wisconsin's mascot, celebrates with the fans after a Wisconsin touchdown against Iowa during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Bucky Badger, Wisconsin's mascot, celebrates with the fans after a Wisconsin touchdown against Iowa during the first half of an NCAA college football game Saturday, Oct. 30, 2021, in Madison, Wis. Wisconsin upset Iowa 27-7. (AP Photo/Andy Manis)

Oct. 30, 2021 04:13 PM EDT