"I hit my first one here," Pettini told Barnes, "and then I didn't hit another one."
Sure enough, Pettini slugged his only Major League home run in July 23, 1980, for the Giants, off Guillermo Hernandez. Barnes, who began the year in Double-A and was called up last week from Triple-A, homered off Jeff Samardzija.
Barnes received about 30 text messages, 10 voicemails, and countless messages on Facebook and Twitter from friends and family after the game, congratulating him for the homer. Barnes said that hitting the homer at Wrigley has extra significance.
"There's such great history here, and it's exciting to get in there and have a productive at-bat," Barnes said.
Barnes hit 12 homers in 399 career Minor League at-bats, so he's likely to hit more in the bigs if he gets a good pitch to hit. Pettini, meanwhile, had 344 career at-bats in the Majors from 1980 to 1983 and finished with one career homer and 20 RBIs.