No. 3 Iowa beats No. 4 Penn State 23-20, fans storm field

Iowa defensive back Jack Koerner (28) trips up Penn State quarterback Sean Clifford (14) on a run in the first half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Iowa quarterback Spencer Petras (7) celebrates with fans on the field after Iowa beat Penn State 23-20, in an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Fans storm the field after Iowa beat Penn State 23-20, in an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Iowa wide receiver Desmond Hutson (81) celebrates with fans on the field after Iowa beat Penn State 23-20, in an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Penn State linebacker Curtis Jacobs (23) sacks Iowa quarterback Spencer Petras (7) during the first half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

A fan hugs Iowa defensive lineman Logan Lee (85) on the field after Iowa beat Penn State 23-20, in an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Iowa linebacker Jack Campbell (31) rips down Penn State wide receiver Parker Washington (3) during the first half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Penn State safety Jaquan Brisker (1) runs back an interception as Iowa wide receiver Keagan Johnson (6) makes the tackle during the first half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Iowa wide receiver Charlie Jones (16) makes a reception in front of Penn State linebacker Brandon Smith (12) during the first half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Iowa head coach Kirk Ferentz directs his team against Penn State during the first half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Penn State quarterback Sean Clifford (14) dives in for a touchdown past Iowa linebacker Seth Benson (44) during the first half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Iowa wide receiver Nico Ragaini (89) runs the ball as he is trailed by Penn State cornerback Daequan Hardy (25) during the first half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Iowa wide receiver Nico Ragaini (89) reacts after scoring a touchdown in front of Penn State safety Ji'Ayir Brown (16) during the second half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. Iowa won 23-20. (AP Photo/Matthew Putney)

Iowa wide receiver Charlie Jones (16) dives in for a touchdown despited defensive efforts by Penn State safety Ji'Ayir Brown (16) during the first half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Iowa wide receiver Charlie Jones (16) dives for a touchdown despited defensive efforts by Penn State safety Ji'Ayir Brown (16) during the first half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. (AP Photo/Matthew Putney)

Iowa wide receiver Nico Ragaini (89) dives to score a touchdown in front of Penn State safety Ji'Ayir Brown (16) during the second half of an NCAA college football game, Saturday, Oct. 9, 2021, in Iowa City, Iowa. Iowa won 23-20. (AP Photo/Matthew Putney)