The 29-year-old Guzman has split time between first base and corner outfield in recent years, owning a career .259/.324/.418 line over four seasons with the Padres. Jackson changes teams after being claimed off waivers from the Cardinals by the Astros earlier this offseason. The infielder slashed .278/.352/.346 with Triple-A Memphis this past season. Both players are likely destined for reserve roles with their new clubs.