Robertson struck out two in a scoreless inning to collect his sixth save of the season in Chicago's 3-0 win over Detroit in the first part of a doubleheader.
Robertson and three other relievers finished up for Tyler Danish, who managed to get through five innings in his first major-league start. This was the first save opportunity since April 29 and the first converted save in over a month for Robertson, who closed out a game against Kansas City on April 26 to pick up his fifth save.