Knox, Wells help Marshall beat No. 23 Appalachian State 17-7

Marshall linebacker Brian Cavicante (16) celebrates after a stop against Appalachian State during an NCAA college football game Saturday, Sept. 19, 2020, in Huntington, W.Va. (Sholten Singer/The Herald-Dispatch via AP)

Marshall quarterback Grant Wells (8) rushes upfield on a keeper against Appalachian State during an NCAA college football game Saturday, Sept. 19, 2020, in Huntington, W.Va. (Sholten Singer/The Herald-Dispatch via AP)

Appalachian State quarterback Zac Thomas (12) drops back to pass as they take on Marshall during an NCAA college football game Saturday, Sept. 19, 2020, in Huntington, W.Va. (Sholten Singer/The Herald-Dispatch via AP)

Marshall head coach Doc Holliday leads in the team as they arrive for their game against Appalachian State before an NCAA college football game Saturday, Sept. 19, 2020, in Huntington, W.Va. (Sholten Singer/The Herald-Dispatch via AP)

Marshall quarterback Grant Wells (8) rolls out of the pocket to make a throw against Appalachian State during an NCAA college football game Saturday, Sept. 19, 2020, in Huntington, W.Va. (Sholten Singer/The Herald-Dispatch via AP)

Marshall quarterback Grant Wells (8) makes a throw against Appalachian State during an NCAA college football game Saturday, Sept. 19, 2020, in Huntington, W.Va. (Sholten Singer/The Herald-Dispatch via AP)

Appalachian State players celebrate an interception by safety E.J. Jackson during an NCAA college football game against Marshall Saturday, Sept. 19, 2020, in Huntington, W.Va. (Sholten Singer/The Herald-Dispatch via AP)