Omaha roughed up Houston’s top prospect Friday at Werner Park.

Nos. 2 and 3, however, did enough damage to propel Round Rock to a 8-7 win over the Storm Chasers.

Outfielder Kyle Tucker and designated hitter Yordan Alvarez combined for six hits and drove in five runs as the Express (21-13), leaders of the PCL’s American South, claimed the final three games of the series.

Alvarez, the league leader in RBIs with 44, singled in a run in the first inning and doubled in two more in the second as Round Rock jumped to a 5-3 lead. Tucker singled in a run in the first and homered in the fifth. The outfielder, ranked among the top 15 prospects in baseball, finished a triple shy of a cycle.

Omaha (14-21), meanwhile, homered three times off Express starter Forrest Whitley. The 6-foot-7 21-year-old, with an arsenal of five pitches, is widely considered to be the top pitching prospect in the pros.

Whitley has struggled at the Triple-A level, though. He brought a 10.48 ERA into the game, then surrendered a three-run homer to Cheslor Cuthbert and solo shots to Nick Dini and Jorge Bonifacio. The right-hander exited in the fourth inning after allowing five hits and walking three batters.

He received a no-decision after leaving with the game tied 5-5. Tucker’s homer, off Friday’s loser Zach Lovvorn (1-2), to open the fifth put the Express up for good. AJ Reed followed with a solo shot as well.

Lovvorn gave up five runs after following Omaha’s opener Kyle Zimmer to the mound. Zimmer, like Whitley, also is a former first-round draft pick. He was selected in 2012. Whitley was drafted in 2016.

Myles Straw, who scored three times, and Garrett Stubbs each reached base five times for Round Rock.

Bonifacio homered again of winning pitcher Cy Sneed (1-4) in the ninth to pull the Chasers within a run. Sneed bounced back to get Cuthbert to ground out and Bubba Starling to fly out to end the game.

Starling made two highlight-reel plays in center field. He tracked down a would-be extra-base hit from Jack Mayfield and turned it into a double play, then later robbed Derek Fisher of a hit with a diving catch.