Ex-49er joins rival:

Seahawks sign Tramaine Brock after charges against him are dropped.

Now that charges have been dismissed in his legal case, new Seattle Seahawks cornerback Tramaine Brock must wait to see if the NFL will hand down any discipline.

The Seahawks signed Brock to a one-year contract Wednesday, giving the former starter in San Francisco a chance to add depth to Seattle’s secondary. His signing came a week after charges were dropped against Brock in a domestic violence case that led to his release by the 49ers.

Brock was arrested in April and accused of hitting a woman he was dating. He was charged with felony domestic violence in June, but charges were dropped last week by the Santa Clara County district attorney’s office. Prosecutors said there was insufficient evidence to proceed with the case because the accuser didn’t cooperate.

Elliott hearing: Dallas running back Ezekiel Elliott’s appeal of a six-game suspension over a domestic violence case will be heard by arbitrator Harold Henderson, who reduced Greg Hardy’s ban when the defensive end was with the Cowboys two years ago.

Henderson is one of the people approved by Commissioner Roger Goodell to hear appeals under the NFL’s personal conduct policy.

The league concluded after a yearlong investigation that Elliott, the 2016 NFL rushing leader as a rookie, had several physical confrontations that left his girlfriend with bruises last summer in Ohio. Prosecutors didn’t pursue the case, citing conflicting and inconsistent information.

Elliott hasn’t spoken to reporters since training camp started, but wrote on Twitter after last week’s ruling that he “strongly” disagreed with the NFL’s findings.

Briefly: The Jets signed wide receiver Kenbrell Thompkins and waived/injured safety Doug Middleton. Thompkins played seven games with the Jets in 2015 . ... Washington safety Su’a Cravens had knee surgery and there’s no timeline for his return . ... Saints head coach Sean Payton said that cornerback Delvin Breaux needs lower-leg surgery that will sideline him about six weeks and that the initial misdiagnosis of Breaux’s injury as a bruise has sparked a shakeup in the medical staff.