The Dodgers have yet to name a starter for Tuesday's game.
Haeger said Sunday that his right heel has been bothering him and that he has been receiving treatment for it. He said he expects to see a doctor on Monday locally.
"I think we're going to go see a doctor this week and make sure everything's OK with the bone and everything structurally down there," said Haeger, who lasted just five batters in a start against the Rockies on Saturday.
A few minutes before Haeger spoke, manager Joe Torre said he was unsure whether Haeger would travel. Haeger did not speak of any physical problems until Sunday, saying he was fine after Saturday's start.
If Haeger is placed on the disabled list, it allows the Dodgers to recall John Ely from Triple-A Albuquerque to make a start on Tuesday. Ely, who was brilliant for 6 2/3 innings against the Brewers on Thursday in his second career start, normally would not be eligible to return to the big league roster for 10 days. He is able to return, however, in case of an injury to a pitcher on the Dodgers' 25-man roster.
Haeger is out of options and would need to clear waivers to be sent to the Minor Leagues.
Ramon Ortiz and Carlos Monasterios are the other two pitchers Torre said he was considering starting on Tuesday. Torre said he would name his starter on Monday.