The White Sox had to open a roster spot for Jonathan Cannon, who has been reinstated from the 15-day injured list and will start Sunday’s game against the San Francisco Giants. As a result, rookie right-handed pitcher Wikelman Gonzalez has been optioned to Triple-A Charlotte. Gonzalez made his major league debut on June 20 in Toronto, and pitched two innings with one hit, one earned run, two walks and two strikeouts.