Jansen, who is out indefinitely with a recurrence of an irregular heartbeat, awaits a meeting Tuesday morning with doctors, who will determine whether the closer is out for the remainder of the season or if he can pitch as early as Friday against the Giants.
In the meantime, Jansen continues to work out as he normally would, albeit without the rest of the team as he cannot run the risk of being hit by an incoming ball.
Concerned about Jansen's well-being first and foremost, manager Don Mattingly said he is prepared to go with relievers Brandon League and Ronald Belisario in the closer role if Jansen has to be shut down.
"You can't say you can go without Kenley and be as good," Mattingly said. "But that doesn't mean you can't get it done. It'll be a challenge, but you just have to make things work. It's like playing without Matt [Kemp]. We were able to win some games with some of our guys hurt, but you know you're not as good."
As for Billingsley, who is on the disabled list with a sore elbow, said he feels better this week than last and he remains optimistic he could return. He is also awaiting a meeting with the doctors to find out if he needs a second platelet-rich plasma injection.
The righty won't even start to pitch until he is 100 percent pain free, and he might end up throwing out of the bullpen if he does return without much time to work back to full strength.
"He can help you fill an inning here and an inning there," Mattingly said about the possibility of getting Billingsley back as a reliever.
However, that is still a long shot to happen with Billingsley saying he hasn't even picked up a baseball to try throwing since hitting the DL.