PEORIA, Ariz. -- Padres manager Bud Black announced Thursday infielder Logan Forsythe will be sidelined at least six weeks after the plantar fasciitis in his right foot inflamed into severe pain Tuesday in a Cactus League game against the Giants.
The injury, which limited the 26-year-old to just 22 at-bats this spring, will keep Forsythe in a walking boot for the first three weeks of his rehab process before he resumes baseball activities.
"After he comes out of it, we'll assess it from there," Black said. "The six weeks is just a minimum."
With Chase Headley already set to miss much of April with a fractured tip of his left thumb, Forsythe would have likely been the Opening Day starter at third base. Instead, he'll begin the year on the disabled list. Cody Ransom, Jedd Gyorko and Alexi Amarista will platoon second and third base while the injured players heal.
To make room for Ransom and Gyorko on the 40-man roster, the Padres will move Casey Kelly and Cory Luebke to the 60-day DL this weekend.
"It's part of the game, injuries happen in professional sports," Black said. "It's a blow to our projected roster, but it happens. The guys who are on the roster, no matter who they are, have a job to do. It's right there ahead of them. For the guys who were fighting to make the roster, and they are now on it, it's a great opportunity to show they are great Major Leaguers and they belong."
In 91 games with the Padres last season, Forsythe hit .273 with six home runs and 26 RBIs.
Tyler Emerick is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.