Sammy Sosa becomes the first Cub ever to hit two homers in one inning, hitting them in the 8-run 7th inning at Wrigley Field. The slugger accomplishes the feat leading off the 7th with a solo shot off Jeff Tabaka and then hits a two-run round tripper off Jim Dougherty. The Cubs roll over the Astros, 13 – 1, as rookie Amaury Telemaco, recalled two days ago from the Iowa Cubs, allows just one hit in seven shutout innings.

On May 16, 1996 — Sammy Sosa becomes the first Cub ever to hit two homers in one inning, hitting them in the 8-run 7th inning at Wrigley Field. The slugger accomplishes the feat leading off the 7th with a solo shot off Jeff Tabaka and then hits a two-run round tripper off Jim Dougherty. The Cubs roll over the Astros, 13 – 1, as rookie Amaury Telemaco, recalled two days ago from the Iowa Cubs, allows just one hit in seven shutout innings.

Source:
Baseball Reference May 16