A. J. Griffin SP OAK 3 Days

Griffin (elbow) threw 35 pitches off of a mound Tuesday, Susan Slusser of the San Francisco Chronicle reports.

Griffin, who remains on track to return in June, threw fastballs and changeups off the mound, while tossing curveballs on flat ground. He continues to progress in his recovery without issue.

A. J. Griffin SP OAK 7 Days

Griffin (elbow) was placed on the 60-Day DL on Friday, reports Jane Lee of MLB.com.

Griffin is not expected back until June, so this appears to be more of a roster space move by the A's rather than any kind of setback. Griffin has been throwing side sessions in spring training and is making good progress by all accounts.

A. J. Griffin SP OAK 15 Days

Griffin has thrown three side sessions already this spring, reports Susan Slusser of the San Francisco Chronicle.Griffin has thrown only fastballs in his three sessions, but plans to incorporate change-ups next week. Griffin is not expected to be with the A's until June, but does appear to be progressing well so far in his return from Tommy John surgery.

A. J. Griffin SP OAK 25 Days

Griffin will throw off a mound Tuesday, the Bay Area News Group's John Hickey reports.

He is anticipated to return to the A's in June, and could replace one of Oakland's younger arms at that point. There are players who will miss time that are worth stashing -- like Jose Fernandez -- but Griffin is not quite of that caliber, unless your league has DL spots.

A. J. Griffin SP OAK 26 Days

Griffin (elbow) is currently projected to return to the A's in June, reports Jane Lee of MLB.com.

Griffin is pleased with his progression and will begin throwing bullpen sessions this week, but is clearly a decent ways away from contributing to the A's, even assuming no setbacks. It remains to be seen what Griffin will slide into when he does return, but the A's will likely monitor his workload very closely no matter the role.

A. J. Griffin SP OAK 2 Months

Griffin (elbow) is not expected to be ready for Opening Day, FOX Sports' Jon Morosi reports.

Griffin will be about 11 months removed from Tommy John surgery when the 2015 regular season kicks off, but recovery from the procedure typically takes at least a year, so it should not come as a big surprise if he is not ready for the beginning of the season. Griffin will likely join the Oakland's rotation at some point in 2015, but it remains to be seen how much longer he will need to recover from his elbow injury.

A. J. Griffin SP OAK 10 Months

Athletics transferred RHP A.J. Griffin to the 60-day disabled list.

The move clears room on the 40-man roster for the addition of Nick Buss. Griffin underwent season-ending Tommy John surgery last week.

A. J. Griffin SP OAK 10 Months

A.J. Griffin underwent successful Tommy John surgery on Wednesday.

The surgery was expected and confirmed by A's manager Bob Melvin on Tuesday. He's looking at a return sometime around the middle of 2015.

A. J. Griffin SP OAK 10 Months

Athletics manager Bob Melvin confirmed Tuesday that A.J. Griffin will undergo season-ending elbow surgery Wednesday, though he's not of the exact procedure yet.

It's likely just semantics at this point, as the A's have already conceded that the righty is expected to miss a year, so Tommy John surgery is almost surely what will take place. They'll know for sure only after Griffin's elbow is opened up Wednesday.

A. J. Griffin SP OAK 10 Months

CBS Sports' Jon Heyman has confirmed that A.J. Griffin needs Tommy John reconstructive elbow surgery.

Another promising young starting pitcher goes down. Griffin has been on the shelf since the middle of spring training with elbow discomfort and will now remain sidelined through the first couple months of the 2015 season. The 26-year-old right-hander owns a strong 3.60 ERA and 1.126 WHIP in 282 1/3 major league innings.