Maroney has missed three straight games with a groin injury.
Backup Sammy Morris filled in with a pair of 100-yard games before
hurting his chest in last Sunday's win over the Cowboys.
Morris is expected to miss this week's game in Miami. Maroney
said Morris' status won't affect his own.
"You've still got to know your body and know your injury,"
Maroney said. "Just because another person went down doesn't mean
that you have to speed your [rehab] up and then hurt yourself more.
Now the two of you are out for even longer instead of being
"I'm still going to be patient and whatever [coach Bill]
Belichick and the trainers have for me this week is what they
Maroney, who warmed up on the field before the Cowboys game but
was not activated, said he worries about being labeled injury
prone. As a first-round rookie last season he missed two games and
then underwent offseason shoulder surgery.
"Coming off one injury as it is and then coming into another
one, it definitely is frustrating," he said. "I just can't get
rid of these things."
Maroney has rushed for 252 yards this season, averaging 4.7
yards per carry.
If Maroney can't play Sunday, third-down back Kevin Faulk is
expected to see more playing time. Faulk was the Patriots' leading
rusher against the Cowboys with 13 carries for 50 yards. He had
only 10 rushing attempts in the first five games.
The Patriots also could turn to fullbacks Heath Evans and Kyle
Eckel against a Dolphins run defense ranked 31st.