The Indians placed Olson on the 10-day disabled list Sunday with a strained left lat, Tom Withers of the Associated Press reports. Olson likely picked up the injury during his appearance in Saturday's 9-3 loss to the Twins, when he retired just one of the four hitters he faced en route to giving up two runs. The Indians don't have a firm timetable for Olson's return, but one should come forth once he's cleared to resume throwing again. Evan Marshall was recalled from Triple-A Columbus to take Olson's spot on the active roster.
Olson was activated from the paternity list Saturday. He will resume his role as the Indians' No. 2 lefty in the bullpen. Olson has a 6.75 ERA, 1.25 WHIP and 17 strikeouts in 12 innings this season.
Olson was put on paternity leave prior to Friday's game. Olson will be away from the team for at least one game, and may miss up to three games while awaiting the birth of his child. In a corresponding move, the Indians reinstated Andrew Miller (hamstring) from the disabled list.
Olson has allowed three runs on three hits while striking out 11 across six innings in 2018. Olson owns a 4.50 ERA and 0.50 WHIP in eight appearances out of the Giants' bullpen. He figures to see mid-to-high leverage opportunities in the future, as he's put up scoreless outings in six of his last seven games and collected a hold on April 10 against the Tigers.
Olson threw a scoreless ninth inning against the Angels on Thursday to earn his first career save. Regular closer Cody Allen had a scheduled off day and Andrew Miller pitched the seventh, leaving Olson to protect a three-run lead in the ninth. He converted with ease and is now up to 26 appearances without an earned run allowed this season. The lefty specialist could find himself pitching in some key spots in the postseason.