Humber retired all 27 Mariners batters he faced in the White Sox 4-0 win on Saturday. His perfect game was the third in White Sox history and the first in the Majors since Roy Halladay accomplished the feat in May 2010.
"I'm extremely happy for him," said Berkman, who also shares the same agent as Humber. "I'm going to try to reach out to him and tell him congratulations in the next few days."
Though Berkman was drafted out of Rice five years before Humber began his college career, the two have gotten to know each other through various alumni events. Humber and Berkman's brother-in-law also played together on the 2003 national championship team.