Trent Giambrone has put on a nice little show of power at Triple-A Iowa, homering for the third straight game on Sunday and for the fourth time in his last seven contests with the Chicago Cubs affiliate. More impressive, however, than what the Delta State product has done is what ex-Harrison Central High star Bobby Bradley has managed. He went deep twice for Triple-A Columbus on Sunday after also homering twice on Friday. The highly rated Cleveland prospect leads the International League with 22 home runs. Bradley, a first baseman who is on the Indians’ 40-man roster, is batting .310 over his last 10 games and .287 with 52 RBIs for the year as he awaits his first big league call-up, which reportedly might happen in July. He has 136 homers in his six minor league campaigns. Giambrone, a fourth-year pro who is not on the Cubs’ 40-man, is batting .375 in his last seven games and .220 with 13 homers on the season. He has played seven different positions for the I-Cubs. He opened some eyes in the Cubs’ system when he batted .324 in major league camp this spring. Of course, no discussion of power hitting can be complete without mention of Hunter Renfroe, the Mississippi State alum who hit two homers for San Diego on Sunday after belting three – 1,316 feet worth — on Friday. He has nine in his last 15 games and 23 for the season, tied for second in the majors. P.S. Former Ole Miss and Pearl River Community College standout Braxton Lee leads the Eastern League with a .304 average in 51 games for Double-A Binghamton in the New York Mets’ chain. The onetime big leaguer is batting .346 over his last 10 games. … Drew Waters of the Mississippi Braves is batting an absurd .463 in his last 10 games and leads the Southern League in hitting at .338 heading into the SL All-Star break. He has a 25-game on-base streak. He also leads the loop in triples, doubles and OPS.