Bart (thumb) was placed on the 10-day injured list Tuesday, Kevin Gorman of TribLive.com reports.
The 27-year-old was lifted from Sunday's matchup against Atlanta due to the injury and will now be sidelined for at least the next week and a half, though the severity of the injury remains unclear. Grant Koch was called up from Triple-A Indianapolis and will serve as Yasmani Grandal's backup while Bart is unavailable.
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Pirates' Joey Bart: Leaves game with left thumb injury
Rotowire
Bart left Sunday's game against Atlanta due to a left thumb injury, Alex Stumpf of MLB.com reports.
Bart was pulled before the start of the second inning Sunday, with Yasmani Grandal taking over behind the plate. The severity of the injury is not yet known, but Bart is being evaluated by medical staff, per Noah Hiles of the Pittsburgh Post-Gazette. Bart has gone 9-for-28 with one home run and four RBI in May.
Bart went 2-for-4 with a double and a grand slam in Thursday's 7-6 loss to the Giants.
Bart made quite an impression on his former team, launching a 434-foot grand slam off Mason Black in the fourth inning to put the Pirates ahead 5-1. The 27-year-old Bart's been hot of late, going 9-for-23 (.391) with three extra-base hits in his last seven games on the heels of an 0-for-14 stretch. Overall, he's slashing .267/.362/.517 with four homers, 12 RBI and seven runs scored across 21 games. With Yasmani Grandal nursing a groin injury, Bart could be in line for a regular starting role in the short term.
