Perry Fewell, the former New York Giants defensive coordinator, has a standing offer to join the San Francisco 49ers as their defensive backs coach under new coach Jim Tomsula, but is also set to interview with Washington for the same position, ESPN.com has learned.

Source says Fewell already has an offer from the 49ers to be their DB coach. Might have other options... — John Keim (@john_keim) January 26, 2015

Fewell interviewed with the Niners over the weekend after he was released by the Giants following five seasons as their defensive coordinator. He was replaced in the Meadowlands by Steve Spagnuolo.

The Giants had the NFL’s No. 29-ranked total defense in 2014, No. 18 against the pass.

The Niners, meanwhile, led the NFL with 23 interceptions.

Former secondary coach Ed Donatell followed defensive coordinator Vic Fangio to Chicago for the same gigs with the Bears under their new coach, John Fox.

The 49ers, one of two teams without an offensive coordinator, along with the St. Louis Rams, have yet to announce any hirings to Tomsula’s staff, though an updated tracker can be found here and Eric Mangini is in line to become the defensive coordinator.