San Francisco 49ers

49ers cut Tramaine Brock following Thursday arrest

The 49ers released cornerback Tramaine Brock on Friday, one day after he was arrested on a domestic violence charge involving his girlfriend.

Brock, 28, started 16 games at cornerback last season and had been one of the few players remaining from the team’s most recent Super Bowl appearance.

According to the Santa Clara Police Department, police found “visible injuries” on Brock’s girlfriend after responding to a domestic violence call at 9:35 p.m. Thursday. Brock, 28, was booked into the Santa Clara County main jail after voluntarily going to police headquarters later that night. He posted bail at noon Friday.

Police described the woman’s injuries as “minor” and she received no medical attention. The incident allegedly took place at Brock's residence, which is less than a mile from the team’s Santa Clara headquarters and Levi’s Stadium.

Brock’s arrest was the first involving a 49er since the hiring of general manager John Lynch and coach Kyle Shanahan, who repeatedly have stressed the importance of character in the team’s locker room.

“We’re going to hold people accountable,” Shanahan said Feb. 9. “We’re going to do it the right way. Everybody who’s in this from the top to the bottom will be going in one direction.”

News of Brock’s release did not include a quote from Lynch or Shanahan, but merely was a one-sentence announcement: “The San Francisco 49ers today announced they have released CB Tramaine Brock.”

The 49ers have had a spate of arrests in recent years, the most recent occurring in September when tight end Bruce Miller was arrested for assaulting an elderly man and his son in a San Francisco hotel. The 49ers promptly released Miller, who had been arrested for another incident in 2015.

Brock’s arrest marks the 15th time a 49ers player has been arrested since 2012 when then-linebacker Aldon Smith was charged with DUI in Miami Beach. His ouster leaves the 49ers with just five players – tackle Joe Staley, center Daniel Kilgore, tight end Garrett Celek and linebackers NaVorro Bowman and Ahmad Brooks – who played in the Super Bowl in February 2013.

Brock entered the league in 2010 as an undrafted free agent out of Belhaven University in Mississippi. He started 40 games for the 49ers since that time and was a frontrunner for one of the starting cornerback roles this season. He was signed through the upcoming season after inking a contract extension four years ago.

Now the two starting cornerback spots seem up for grabs with Rashard Robinson – who was a fourth-round pick a year ago – Dontae Johnson and Keith Reaser among those vying for the role. Lynch said last month that the 49ers would give another cornerback starter from last year, Jimmie Ward, a look at free safety this year.

The 49ers could look at both safety and cornerback early in the draft. One of the top cornerbacks in the draft, Ohio State's Marshon Lattimore, visited the 49ers earlier in the week.

Matt Barrows: @mattbarrows, read more about the team at