The Giants designated Travis Ishikawa for assignment, according to John Shea of the San Francisco Chronicle (on Twitter). Rookie Brandon Belt made the Giants' Opening Day roster, bumping Ishikawa from the team.
The 27-year-old appeared in 116 games last year and hit .266/.320/.392 in 173 plate appearances. He doesn't have much power for a first baseman (career .400 SLG), but UZR suggests he is well above average with the glove (career 13.5 UZR/150).
Ishikawa, who is out of options, didn't draw trade interest this spring, according to Henry Schulman of the Chronicle (on Twitter). That could change now that the Giants only have ten days to trade Ishikawa, release him or outright him to the minor leagues.