The issue first popped up this year in Week 3, forcing Harvin to miss two practices. But Harvin played against the San Francisco 49ers that Sunday and had his first kickoff return for a touchdown.
Meanwhile, NFL Network's Steve Wyche reports that Vikings cornerback Antoine Winfield, who has missed the previous six games with a fractured right foot, could make his return Sunday against the Cincinnati Bengals, according to a league source. A good sign for Minnesota is that Winfield has increased his workload in practice.
The Vikings have 13 players, including 12 starters, listed on this week's injury report. Running back Adrian Peterson (foot/ankle) and right tackle Phil Loadholt (shoulder) participated in part of practice Thursday after being held out Wednesday. Safety Tyrell Johnson again missed practice because of a concussion.
The Associated Press contributed to this report