"Until that [swelling] goes away and I feel comfortable off the mound and throwing, got to kinda take a step back," Ondrusek said. "Which is unfortunate, but at least it's early on in camp and not right at the end."
• Spring: Tickets | Ballpark | 40-man roster | NRIs
The 32-year-old Ondrusek joined the O's in July from Japan, and he is competing for one of the final bullpen spots. He's hoping this injury doesn't sideline him long, and that he'll back out later this week.
"Thats what I'm hoping," Ondrusek said. "It feels better than it did yesterday. … Hopefully it's just two days, three days and back on the mound and put all this behind me and be ready to go."
Ondrusek appeared in seven games for the Orioles this past year, and he allowed seven earned runs on nine hits, striking out four and walking three. The O's declined a club option earlier in the offseason before signing him to a one-year, $625,000 deal with a 2018 option this winter. The contract allows him to be sent to the Minors without having to clear waivers first.
• Orioles manager Buck Showalter said left-hander T.J. McFarland had some shoulder soreness Saturday, but he was reported to be better on Sunday.
• The O's have just 54 players in camp, which is the fewest in the Majors.
Brittany Ghiroli has covered the Orioles for MLB.com since 2010. Read her blog, Britt's Bird Watch, follow her on Facebook and Twitter @britt_ghiroli, and listen to her podcast. This story was not subject to the approval of Major League Baseball or its clubs.