Hernandez, who will join the Red Sox for Monday's series opener against the Royals, will be embarking on his third stint with the big league club this season. He made his Major League debut on April 17 against the Blue Jays, going 1-for-2 with a walk.
The versatile 23-year-old was hitting .333 in 24 games for Pawtucket, making 11 starts at second, eight at shortstop, three at third and one in the outfield.
Cash Kruth is a reporter for MLB.com. Follow him on Twitter at @cashkruth. This story was not subject to the approval of Major League Baseball or its clubs.