Tray Walker died Friday, one day after being critically injured in a dirt bike accident in Liberty City, Florida, his agent Ron Butler confirmed.

Walker was 23 and a cornerback for the Baltimore Ravens.

Walker was heading west on Northwest 75th Street on a Honda dirt bike when he collided with a Ford Escape heading south on Northwest 21st Avenue, according to the Miami-Dade Police Department. The accident occurred at about 7:50 p.m. on Thursday, and police said Walker's bike did not have lights and that he was wearing dark clothing.

Walker was a fourth-round pick of the Ravens in 2015. He played eight snaps on defense as a rookie, making one tackle.

The Baltimore Ravens have agreed upon a two-year, $11.5 million deal with Mike Wallace.

Wallace spent last season with the Minnesota Vikings.

The Ravens also are bringing back Steve Smith Sr.

Eric Weddle has agreed to sign with the Baltimore Ravens on a four-year, $29 million deal.

Weddle will make $9 million this season and receive $13 million in guaranteed money.

Weddle has been one of the NFL's safeties during his time with the San Diego Chargers.

The Oakland Raiders and Kelechi Osemele have agreed in principle on a contract worth approximately $60 million over five years. Osemele becomes the highest paid guard in NFL history.

Osemele is considered one of the most physical and versatile offensive linemen in free agency at the age of 26. He boosted his value last season when he switched from left guard to left tackle for the last four games. Osemele was also the Ravens' starting right tackle in the Super Bowl in 2012.

A second-round pick in 2012, Osemele built a reputation as a mauling run-blocker and sound pass-protector. 

The Raiders have amongst the most cap space in the NFL entering the offseason.

Joe Flacco and the Baltimore Ravens have agreed upon a three-year extension through 2021.

The Ravens were looking to lower Flacco's $28.55 million cap number, which is the third-highest in the NFL.

Flacco is expected to receive more guaranteed money than what he is scheduled to earn over the final three years of his current deal ($58.6 million) and continue to average more than $20 million per season.

Flacco receives $66.4 million in new money and a record $40 million signing bonus with $44 million guaranteed.