<p>BROOKINGS, S.D. — Mark Gronowski threw two touchdown passes to Jadon Janke and ran 67 yards for the go-ahead score to help South Dakota State rally from a 13-point deficit and beat Southern Illinois 31-26 on Sunday night in the FCS playoffs. </p>
<p>Top-seeded South Dakota State (7-1), which No. 3 in the STATS FCS poll, will host fifth-ranked Delaware in the semifinals Saturday. </p>
<p>Nico Gualdoni made a 33-yard field goal to give Southern Illinois (6-4) a 20-7 lead with 22 seconds left in the second quarter, but the Jackrabbits scored the next 24 points to take the lead for good. </p>
<p>Isaiah Davis <a href="https://twitter.com/GoJacksFB/status/1389043815894306818">returned the ensuing kickoff 50 yards</a> to set up a 34-yard field goal by Cole Frahm as time expired in the first half. </p>
<p>Janke, whose 23-yard touchdown reception in the first quarter opened the scoring, caught a 26-yard TD pass midway through the third to trim SDSU’s deficit to 20-17. </p>
<p>The Salukis were stopped at the 1 on a fourth-and-goal play on their ensuing drive before Gronowski pulled the handoff on a zone-read play and raced down the left sideline to put the Jackrabbits in front early in the fourth. Davis scored on a 4-yard run that made it 31-20 with 7:11 to play.</p>
<p>Landon Lenoir had six receptions for 129 yards, including a 31-yard touchdown, for SIU. </p>
<p>Gronowski finished 9 of 16 for 183 yards and had 142 yards rushing on 13 carries. </p>
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<p>More AP college football: <a href="https://apnews.com/Collegefootball">https://apnews.com/Collegefootball</a> and <a href="https://twitter.com/AP_Top25">https://twitter.com/AP_Top25</a></p>
