Posey exited Sunday's game against the Diamondbacks in the bottom of the sixth inning with an apparent left thumb injury, Andrew Baggarly of The Athletic reports.

EDGE Analysis

Posey took a foul ball off his glove hand and appeared to be in considerable pain while he was checked by trainers. He caught two warmup pitches and was initially able to remain in the game, but he removed himself from the contest after catching one more pitch. The catcher will presumably undergo X-rays following his early exit, and a better idea of his status could be revealed after he's examined by the team's medical staff. Prior to his departure, the 34-year-old went 1-for-2 with two runs, an RBI, a walk and a strikeout.

Posey isn't starting Saturday's game against the Diamondbacks, Susan Slusser of the San Francisco Chronicle reports.

EDGE Analysis

Posey started each of the last five games, and he went 7-for-18 with two doubles, four walks and six strikeouts during that time. He'll get a day off while Curt Casali starts at catcher and bats eighth.

Posey (back) is starting behind the plate and batting cleanup Sunday versus the A's, Mark W. Sanchez of KNBR 680 San Francisco reports.

EDGE Analysis

The veteran backstop sat out the past two games while managing some back tightness, but he'll rejoin the lineup for Sunday's series finale. Posey is slashing .321/.410/.453 with two homers, six RBI, eight runs and an 8:13 BB:K through 16 games in June.

Posey (back) will sit for the second consecutive game Saturday against Oakland, Amy Gutierrez of the Giants' official site reports.

EDGE Analysis

A vintage season from the 34-year-old Posey has helped catapult the surprising Giants to the best record in baseball. Losing their star backstop, who's hitting .322/.411/.556 on the year, would be a big blow, though manager Gabe Kapler didn't seem too concerned about the issue when Posey was scratched from the lineup Friday. Curt Casali will remain behind the plate in his absence.

Posey (back) could return to the lineup for Saturday's contest against Oakland, Alex Pavlovic of NBC Sports Bay Area reports.

EDGE Analysis

Manager Gabe Kapler revealed after Friday's game that Posey's back tightened up in the cage ahead of the matchup, which led to his removal from the lineup. However, he didn't sound too concerned about the injury and was hopeful that the catcher could return to action Saturday. If the 34-year-old requires additional rest, Curt Casali would likely continue to see time behind the time behind the dish.

Posey was scratched from the lineup for Friday's game against the Athletics due to low back tightness, Maria I. Guardado of MLB.com reports.

EDGE Analysis

The severity of Posey's injury isn't yet known, and it's not yet clear whether he could be available off the bench Friday. Curt Casali will take his place behind the dish and bat seventh.

Posey is out of the lineup for Sunday's game against the Phillies.

EDGE Analysis

Curt Casali will receive a turn behind the dish while Posey sits out the series finale in what's likely just a routine maintenance day.

Posey will be on the bench for Thursday's game against Arizona, Maria I. Guardado of MLB.com reports.

EDGE Analysis

Posey continues to receive regular rest, rarely starting more than two games in a row. The plan is clearly working, as the veteran is in vintage form, hitting .337/.411/.586 with 12 homers in 47 games. Curt Casali starts behind the plate in his absence.

Posey went 3-for-4 with a three-run home run and two additional runs scored in Wednesday's win over the Diamondbacks.

EDGE Analysis

Posey delivered a strong game across the board, but his finest moment came in the first inning when he blasted a three-run shot off Merrill Kelly -- it was his 12th long ball of the year. The veteran backstop has hit safely in eight of his last 10 games and sports an impressive .410 average with two homers, five RBI and seven runs scored in that span.

Posey will sit Monday against Arizona, Alex Pavlovic of NBC Sports Bay Area reports.

EDGE Analysis

The Giants have managed Posey's playing time carefully this season, only once asking him to start more than two games in a row. He'll head back to the bench after making just one start this time around, though he's started three days in a row, getting the call in the afternoon portion of Saturday's doubleheader against the Nationals. Curt Casali starts behind the plate in his absence.