A corresponding move has yet to be reported, but the Giants will need to clear roster space to make way for Slater. While that could involve optioning youngster Christian Arroyo, a 40-man move of some kind will be needed regardless.
Slater has thrived in the upper minors since the start of the 2016 season. All told, he owns a .308/.381/.487 slash through 474 trips to the plate at Triple-A, with 48 walks to go with 91 strikeouts.
While the right-handed hitter can play center, it makes sense to expect he’ll find most of his opportunities in left field. San Francisco has struggled to find production from the outfield all year long.
The struggling Giants could ultimately begin cycling in more new faces, Baggarly notes, if the club can’t quickly break out of its season-long struggles. It seems that light-hitting outfielder Gorkys Hernandez is the most likely player to go to make way for Slater, though a few of other roster spots also appear to be less than secure.