Former Mississippi high school stars Bobby Bradley (Harrison Central) and Austin Riley (DeSoto Central) faced off, sorta, in the International League playoffs on Wednesday when Columbus and Gwinnett tangled in the semifinals. Riley homered for the Gwinnett Stripers (Atlanta’s Triple-A club), but Columbus (Cleveland) won Game 1 5-4 as Bradley went 2-for-5 with two RBIs, a run and a stolen base. Riley, currently on a big league rehab assignment, hit 15 homers for the Stripers this season before moving up to the majors, where he hit 17 more for the Braves. Bradley, who also got a look in MLB this summer, led the IL with 33 homers. … Biloxi won its Southern League South playoff opener 11-10 on a Dillon Thomas walk-off homer in the 10th inning at MGM Park. In the North opener, Delta State product Dalton Moats threw a scoreless inning in Montgomery’s 4-0 win against Jackson. … Ex-DSU star Zack Shannon hit a home run for Kane County in a loss to Clinton in the Class A Midwest League playoffs. Shannon hit 12 homers during the season. Also in the MWL, Ole Miss product Grae Kessinger and former Southern Miss standout Matt Wallner, both 2019 draftees, are on opposing sides in the Quad Cities-Cedar Rapids series. Kessinger had a hit and a run QC’s Game 1 win, while Wallner went 0-for-4. … Former Itawamba Community College star Tyreque Reed belted a homer for Hickory as the Crawdads beat Delmarva in the Class A South Atlantic League playoffs. Reed hit .282 with 13 homers for Hickory this season. … Walker Robbins, the George County High alum, notched a hold for Johnson City as the Cardinals beat Burlington to claim the rookie Appalachian League championship. Robbins, in his fourth pro season but first as a fulltime pitcher, posted a 2.52 ERA in 17 games for Johnson City.