By this time next week, the Orioles hope to have Darren O’Day back. O’Day was scheduled to throw on Friday in Detroit, and if that went well, there would be a simulated game for him Monday or Tuesday in Boston.

If that went well, O’Day could be activated. The Orioles have badly missed him.

Even though Buck Showalter wouldn’t single out a specific injury when asked which of his team’s was the most costly, O’Day’s has been the most far reaching one.

RELATED: ORIOLES, TIGERS BATTLING FOR POSTSEASON SPOT

In two stints on the disabled list for hamstring and shoulder injury, O’Day has now missed over half the team’s games.

While the Orioles have a capable bullpen, some of the relievers haven’t prospered while O’Day has been absent.

During the 18 days after he was put on the disabled list and before the rosters were expanded on Sept. 1, the bullpen was taxed, and seven relievers were brought in for help. Only three, Oliver Drake, Tommy Hunter and Tyler Wilson are currently with the club.

Wilson who was recalled immediately after O’Day was put on the DL, was with the club briefly, and recalled a week ago. He hasn’t been used since.

The reliever who has suffered the most in O’Day’s absence is Mychal Givens, whose ERA has risen from 2.16 in early June when O’Day first when on the DL to 3.60. In his last eight innings, Givens has allowed seven runs.

One reliever who has done well is Donnie Hart, who has yet to allow a run in 12 2/3 innings.

MORE ORIOLES: WHICH FREE AGENTS SHOULD STAY WITH ORIOLES?