A's star third baseman Matt Chapman will be slowed by ongoing rehab this spring, but don't count him out from the club's March 20 regular-season opener against the Mariners in Tokyo.

"I know I'll be ready by the season," Chapman said Sunday.

The Platinum Glove Award-winning infielder succumbed to two minor operations this winter; he had surgery on his right thumb in October, then underwent a procedure to alleviate issues with the AC joint in his left shoulder in December.

Chapman is still recovering from the latter and, like last spring, when he was bothered by his thumb, won't appear in preseason games right away. His thumb has since been fixed by the surgery, but his shoulder is still limiting his activity. Chapman is already taking grounders and throwing, but he remains on a swinging progression and hopes to start hitting overhand tosses next week.