Walker (foot) will be out of his walking boot Sunday, but he remains "a few weeks" away from rejoining the Mariners' rotation, Greg Johns of MLB.com reports.
The Mariners plan to have Walker resume a light throwing program Sunday once he's out of the boot, which is an encouraging sign. However, given the nature of foot injuries, Seattle will not rush Walker back before he's absolutely ready. While the timeline for Walker's return may be longer than initially expected, a healthy Walker for the stretch run is the long-term goal.