Ahmad Bradshaw could be out for a while. (Bill Kostroun/AP)

Already hamstrung by injuries — which include the hamstring of No. 1 receiver Hakeem Nicks — the Giants will now be without leading rusher Ahmad Bradshaw for multiple weeks.

Bradshaw cracked a bone in his foot during New York’s come-from-behind win against Miami on Sunday and is out indefinitely, Mike Garafolo of the Star-Ledger reports.

Feet and ankles have been a recurring problem for Bradshaw, who had screws inserted into his feet in January, 2010. The latest injury has Bradshaw once again contemplating corrective surgery, according to an anonymous source informed of Bradshaw’s health status.

Bradshaw’s production has left something to be desired through seven games during which he’s cracked 100 yards on the ground only once. The 25-year-old blew up for 104 yards and three touchdowns in a Week 6 win against Buffalo but has been held below 60 yards five times this season.

Still, he has become the team’s most effective runner, supplanting disgruntled former-starter Brandon Jacobs, who has seen his workload slashed and isn’t too happy about it. Jacobs missed two games with an injury but returned against the Dolphins for a four-carry, 10-yard afternoon. With Bradshaw out, he should see a significant bump in carries alongside seldom-used veteran D.J. Ware when the Giants visit New England on Sunday.

Nicks (hamstring), Mario Manningham (illness), center David Baas (knee) and defensive end Osi Umenyiora (shoulder) also missed Wednesday’s practice and several other starters were limited by injuries.